GHSA-m95p-425x-x889Critical
cggmp21 has a missing check in the ZK proof used in CGGMP21
🔗 CVE IDs covered (1)
📋 Description
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 v0.6.3is a patch release that contains a fix that introduces this specific missing check- However, cggmp21 recommends upgrading to
cggmp24 v0.7.0-alpha.2which 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.
🎯 Affected products2
- rust/cggmp21:< 0.6.3
- rust/cggmp24:< 0.7.0-alpha.2
🔗 References (7)
- https://github.com/LFDT-Lockness/cggmp21/security/advisories/GHSA-m95p-425x-x889
- https://github.com/LFDT-Lockness/cggmp21/commit/60e0ada5291e771d5649793329d99edd32285e72
- https://rustsec.org/advisories/RUSTSEC-2025-0129.html
- https://rustsec.org/advisories/RUSTSEC-2025-0130.html
- https://www.dfns.co/article/cggmp21-vulnerabilities-patched-and-explained
- https://nvd.nist.gov/vuln/detail/CVE-2025-66016
- https://github.com/advisories/GHSA-m95p-425x-x889