Version	Released
`2.2.3` unknown	Jul 17, 2026
`2.2.2` unknown	Feb 03, 2026
`5.0.0-rc.1` unknown	Jan 13, 2026
`2.2.1` unknown	Sep 02, 2025
`2.2.0` unknown yanked	Aug 27, 2025
`2.1.0` unknown	Aug 26, 2025
`2.0.4` unknown 1 CVE	Aug 20, 2025
`2.0.4-rc.3` unknown 1 CVE	Aug 07, 2025
`2.0.4-rc.2` unknown 1 CVE	Jul 25, 2025
`2.0.3` unknown 1 CVE	Jul 07, 2025
`2.0.3-rc.1` unknown 1 CVE	May 09, 2025
`2.0.2` unknown 1 CVE	Apr 28, 2025
`1.2.6` unknown 1 CVE	Mar 28, 2025
`2.0.1` unknown 1 CVE	Mar 25, 2025
`2.0.0-rc.3` unknown 1 CVE	Mar 21, 2025
`2.0.0-rc.2` unknown 1 CVE	Mar 17, 2025
`2.0.0` unknown yanked 1 CVE	Mar 15, 2025
`2.0.0-rc.1` unknown 1 CVE	Mar 07, 2025
`1.2.5` unknown 1 CVE	Feb 28, 2025
`1.1.4` unknown 1 CVE	Feb 27, 2025
`1.3.0` unknown yanked 1 CVE	Feb 25, 2025
`1.2.4` unknown 1 CVE	Feb 20, 2025
`1.3.0-rc.1` unknown 1 CVE	Feb 15, 2025
`1.2.3` unknown 1 CVE	Feb 11, 2025
`1.2.2` unknown 1 CVE	Jan 28, 2025
`1.2.1` unknown 1 CVE	Jan 15, 2025
`1.2.1-rc.1` unknown 1 CVE	Jan 10, 2025
`1.2.1-rc.0` unknown 1 CVE	Dec 09, 2024
`1.2.0` unknown 1 CVE	Dec 04, 2024
`1.2.0-rc.2` unknown 1 CVE	Dec 03, 2024
`1.2.0-rc.1` unknown 1 CVE	Nov 23, 2024
`1.1.3` unknown 1 CVE	Nov 09, 2024
`1.1.2` unknown 1 CVE	Oct 03, 2024
`1.1.1` unknown 1 CVE	Sep 24, 2024
`1.1.0` unknown yanked 1 CVE	Sep 10, 2024
`1.1.0-rc.3` unknown 1 CVE	Aug 31, 2024
`1.1.0-rc.2` unknown 1 CVE	Aug 22, 2024
`1.1.0-rc.1` unknown 1 CVE	Aug 09, 2024
`1.0.5` unknown 1 CVE	Jul 30, 2024
`1.0.4` unknown 1 CVE	Jul 26, 2024
`1.0.3` unknown 1 CVE	Jul 17, 2024
`1.0.2` unknown 1 CVE	Jul 11, 2024
`1.0.1` unknown 1 CVE	Jun 05, 2024
`1.0.0` unknown 1 CVE	Jun 04, 2024
`1.0.0-rc.7` unknown 1 CVE	Jun 01, 2024
`1.0.0-rc.6` unknown 1 CVE	May 29, 2024
`1.0.0-rc.5` unknown 1 CVE	May 17, 2024
`1.0.0-rc.4` unknown 1 CVE	May 10, 2024
`1.0.0-rc.3` unknown 1 CVE	May 01, 2024
`0.21.0` unknown 1 CVE	Mar 12, 2024

2.2.3 unknown

Jul 17, 2026

2.2.2 unknown

Feb 03, 2026

5.0.0-rc.1 unknown

Jan 13, 2026

2.2.1 unknown

Sep 02, 2025

2.2.0 unknown yanked

Aug 27, 2025

2.1.0 unknown

Aug 26, 2025

2.0.4 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Aug 20, 2025

2.0.4-rc.3 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Aug 07, 2025

2.0.4-rc.2 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Jul 25, 2025

2.0.3 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Jul 07, 2025

2.0.3-rc.1 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

May 09, 2025

2.0.2 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Apr 28, 2025

1.2.6 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Mar 28, 2025

2.0.1 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Mar 25, 2025

2.0.0-rc.3 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Mar 21, 2025

2.0.0-rc.2 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Mar 17, 2025

2.0.0 unknown yanked

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Mar 15, 2025

2.0.0-rc.1 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Mar 07, 2025

1.2.5 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Feb 28, 2025

1.1.4 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Feb 27, 2025

1.3.0 unknown yanked

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Feb 25, 2025

1.2.4 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Feb 20, 2025

1.3.0-rc.1 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Feb 15, 2025

1.2.3 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Feb 11, 2025

1.2.2 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Jan 28, 2025

1.2.1 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Jan 15, 2025

1.2.1-rc.1 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Jan 10, 2025

1.2.1-rc.0 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Dec 09, 2024

1.2.0 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Dec 04, 2024

1.2.0-rc.2 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Dec 03, 2024

1.2.0-rc.1 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Nov 23, 2024

1.1.3 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Nov 09, 2024

1.1.2 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Oct 03, 2024

1.1.1 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Sep 24, 2024

1.1.0 unknown yanked

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Sep 10, 2024

1.1.0-rc.3 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Aug 31, 2024

1.1.0-rc.2 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Aug 22, 2024

1.1.0-rc.1 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Aug 09, 2024

1.0.5 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Jul 30, 2024

1.0.4 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Jul 26, 2024

1.0.3 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Jul 17, 2024

1.0.2 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Jul 11, 2024

1.0.1 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Jun 05, 2024

1.0.0 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Jun 04, 2024

1.0.0-rc.7 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Jun 01, 2024

1.0.0-rc.6 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

May 29, 2024

1.0.0-rc.5 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

May 17, 2024

1.0.0-rc.4 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

May 10, 2024

1.0.0-rc.3 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

May 01, 2024

0.21.0 unknown

1 CVE

CVE-2025-61588 GHSA-jqq4-c7wq-36h7 Oct 01, 2025

risc0 vulnerable to arbitrary code execution in guest via memory safety failure in `sys_read`

Critical

Network Low None None

Arbitrary code execution in guest via memory safety failure in `sys_read`

In affected versions of risc0-zkvm-platform, when the zkVM guest calls sys_read, the host is able to use a crafted response to write to an arbitrary memory location in the guest. This capability can be leveraged to execute arbitrary code within the guest. As sys_read is the mechanism by which input is requested by the guest, all guest programs built with the affected versions are vulnerable. This critically compromises the soundness guarantees of the guest program.

A fix was applied in #3351. The vulnerable pointer arithmetic was removed, and replaced with a simplified implementation in the v1compat kernel which uses Rust’s slice functions to guarantee memory safety.

The fix has been released as part of risc0-zkvm versions 2.3.2 and 3.0.3. All prior versions are affected.

Remediation

All developers of zkVM applications should update their guests to use risc0-zkvm versions ^2.3.2 or ^3.0.3.

This upgrade can be accomplished by editing all Cargo.toml files in the following way.

Any references to risc0-zkvm should use version specifiers ”2.3.2” or ”3.0.3”.
Any references to risc0-build should use version specifiers ”2.3.2” or ”3.0.3”, matching risc0-zkvm.
Any references to risc0-zkvm-platform should use version specifier ”2.1.0” or later. Most projects will not have direct references to this crate.

Rebuild your application including the guest. You can run the following command to check that the patch is applied:

# Provide the path to your guest Cargo.toml. Should report risc0-zkvm-platform >=v2.1.0
cargo tree --depth 0 -p risc0-zkvm-platform --manifest-path path/to/methods/guest/Cargo.toml

Any applications that use the image ID of this guest need to be updated with the newly built image ID.

Note that there are no changes to the RISC Zero proof system or circuits. Provers are not required to take any action. Users of the Groth16 smart contract verifier and the RISC Zero Verifier Router are not required to take any action beyond updating their guest programs.

Any applications using the risc0-aggregation crate or the RiscZeroSetVerifier smart contract should update to version >=0.9. This application includes a zkVM guest, which is vulnerable in versions prior to 0.9. Instances of the RiscZeroSetVerifier operated by RISC Zero have been disabled via the estop mechanism outlined in the Verifier Management Design.

Fixed in


          2.1.0

References

Updated Sep 10, 2026 · Source: OSV.dev

Mar 12, 2024

risc0-zkvm-platform

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