python-socketio
Python Socket.IO server and client
View on Github
Activity
- Latest release
- 1mo ago
- Total releases
- 110
- Cadence
- ~37 days
- Last 12 months
- 10
Reach
- Stars
- 4.4k
Details
- License
- MIT
- First release
- Jul 15, 2015
| Version | Released | |
|---|---|---|
5.16.4
patch
| ||
5.16.3
patch
| ||
5.16.2
patch
| ||
5.16.1
patch
1 CVE
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev | ||
5.16.0
minor
1 CVE
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev | ||
5.15.1
patch
1 CVE
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev | ||
5.15.0
minor
1 CVE
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev | ||
5.14.3
patch
1 CVE
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev | ||
5.14.2
patch
1 CVE
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev | ||
5.14.1
patch
1 CVE
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev | ||
5.14.0
minor
1 CVE
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev | ||
5.13.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.12.1
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.12.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.11.4
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.11.3
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.11.2
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.11.1
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.11.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.10.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.9.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.8.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.7.2
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.7.1
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.7.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.6.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.5.2
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.5.1
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.5.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.4.1
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.4.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.3.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.2.1
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.2.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.1.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.0.4
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.0.3
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.0.2
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.0.1
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
5.0.0
major
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
4.6.1
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
4.6.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
4.5.1
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
4.5.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
4.4.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
4.3.1
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
4.3.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
4.2.1
patch
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
4.2.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev | ||
4.1.0
minor
2 CVEs
CVE-2026-48804
PYSEC-2026-3042
GHSA-5w7q-77mv-v69f
Jul 13, 2026
python-socketio: Binary attachment accumulation can cause denial of service
7.5
/ 10
High
Network
Low
None
None
Unchanged
None
None
High
ImpactThe python-socketio server stores binary PatchesVersion 5.16.2 takes the following measures to address this issue:
Affected versions
0.1.0
0.2.0
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.6.1
0.7.0
+ 95 more Show less
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.14.0
5.14.1
5.14.2
5.14.3
5.15.0
5.15.1
5.16.0
5.16.1
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.16.2
References Updated Jul 13, 2026 · Source: OSV.dev
CVE-2025-61765
PYSEC-2026-1854
GHSA-g8c6-8fjj-2r4m
Jul 07, 2026
python-socketio vulnerable to arbitrary Python code execution (RCE) through malicious pickle deserialization in certain multi-server deployments
6.4
/ 10
Medium
Adjacent
Low
High
None
Unchanged
High
High
Low
SummaryA remote code execution vulnerability in python-socketio versions prior to 5.14.0 allows attackers to execute arbitrary Python code through malicious pickle deserialization in multi-server deployments on which the attacker previously gained access to the message queue that the servers use for internal communications. DetailsWhen Socket.IO servers are configured to use a message queue backend such as Redis for inter-server communication, messages sent between the servers are encoded using the The vulnerability stems from deserialization of messages using Python's ImpactThis vulnerability only affects deployments with a compromised message queue. The attack can lead to the attacker executing random code in the context of, and with the privileges of a Socket.IO server process. Single-server systems that do not use a message queue, and multi-server systems with a secure message queue are not vulnerable. RemediationIn addition to making sure standard security practices are followed in the deployment of the message queue, users of the python-socketio package can upgrade to version 5.14.0 or newer, which remove the Affected versions
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1
0.9.2
1.0
1.1
1.2
1.3
1.4
1.4.1
+ 75 more Show less
1.4.2
1.4.3
1.4.4
1.5.0
1.5.1
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.9.0
2.0.0
2.1.0
2.1.1
2.1.2
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
4.0.0
4.0.1
4.0.2
4.0.3
4.1.0
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.0
4.5.1
4.6.0
4.6.1
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.1.0
5.10.0
5.11.0
5.11.1
5.11.2
5.11.3
5.11.4
5.12.0
5.12.1
5.13.0
5.2.0
5.2.1
5.3.0
5.4.0
5.4.1
5.5.0
5.5.1
5.5.2
5.6.0
5.7.0
5.7.1
5.7.2
5.8.0
5.9.0
Fixed in
5.14.0
References
Updated Jul 07, 2026 · Source: OSV.dev |