GHSA-m95p-425x-x889

Source

https://github.com/advisories/GHSA-m95p-425x-x889

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/11/GHSA-m95p-425x-x889/GHSA-m95p-425x-x889.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-m95p-425x-x889

Aliases

Published

2025-11-25T20:41:04Z

Modified

2025-11-27T09:16:27.373336Z

Severity

9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

cggmp21 has a missing check in the ZK proof used in CGGMP21

Details

Impact

cggmp21 concerns a missing check in the ZK proof that enables an attack in which a single malicious signer can reconstruct full private key.

Patches

cggmp21 v0.6.3 is a patch release that contains a fix that introduces this specific missing check
However, cggmp21 recommends upgrading to cggmp24 v0.7.0-alpha.2 which contains many other security checks as a precaution. Follow migration guideline to upgrade.

Workarounds

Update to cggmp21 v0.6.3, a minor release that contains a minimal security patch.

However, for full mitigation, users will need to upgrade to cggmp24 v0.7.0-alpha.2 as it contains many more security check implementations.

Resources

Read this blog post to learn more.

Database specific

{
    "nvd_published_at": "2025-11-25T20:16:00Z",
    "github_reviewed": true,
    "github_reviewed_at": "2025-11-25T20:41:04Z",
    "severity": "CRITICAL",
    "cwe_ids": [
        "CWE-345",
        "CWE-347"
    ]
}

References

Affected packages

crates.io / cggmp21

Package

Name: cggmp21; View open source insights on deps.dev
Purl: pkg:cargo/cggmp21

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.6.3

crates.io / cggmp24

Package

Name: cggmp24; View open source insights on deps.dev
Purl: pkg:cargo/cggmp24

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.7.0-alpha.2