{"id":"GHSA-m95p-425x-x889","revision":"7b0fcc6684674d12bc54f4d8db06b215","records":[{"revision":"7b0fcc6684674d12bc54f4d8db06b215","observedAt":"2026-10-24T13:19:54.901+00:00","statement":{"source":"osv","id":"GHSA-m95p-425x-x889","aliases":["CVE-2025-66016","RUSTSEC-2025-0129","RUSTSEC-2025-0130"],"title":"cggmp21 has a missing check in the ZK proof used in CGGMP21","description":"### Impact\ncggmp21  concerns a missing check in the ZK proof that enables an attack in which a single malicious signer can reconstruct full private key.\n\n### Patches\n* `cggmp21 v0.6.3` is a patch release that contains a fix that introduces this specific missing check\n* However, cggmp21 recommends upgrading to `cggmp24 v0.7.0-alpha.2` which contains many other security checks as a precaution. Follow [migration guideline](https://github.com/LFDT-Lockness/cggmp21/blob/v0.7.0-alpha.2/CGGMP21_MIGRATION.md) to upgrade.\n\n### Workarounds\nUpdate to `cggmp21 v0.6.3`, a minor release that contains a minimal security patch.\n\nHowever, for full mitigation, users will need to upgrade to `cggmp24 v0.7.0-alpha.2` as it contains many more security check implementations.\n\n### Resources\nRead this [blog post](https://www.dfns.co/article/cggmp21-vulnerabilities-patched-and-explained) to learn more.","state":0,"publishedAt":"2025-11-25T20:41:04+00:00","modifiedAt":"2025-11-27T09:16:27.373336+00:00","affected":[{"ecosystem":"crates.io","name":"cggmp21","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.6.3"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"crates.io","name":"cggmp24","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.7.0-alpha.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"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","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"CRITICAL"}],"references":["https://github.com/LFDT-Lockness/cggmp21/security/advisories/GHSA-m95p-425x-x889","https://nvd.nist.gov/vuln/detail/CVE-2025-66016","https://github.com/LFDT-Lockness/cggmp21/commit/60e0ada5291e771d5649793329d99edd32285e72","https://github.com/LFDT-Lockness/cggmp21","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"],"sourceUrl":"https://github.com/advisories/GHSA-m95p-425x-x889","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-m95p-425x-x889","identifiers":["GHSA-m95p-425x-x889","CVE-2025-66016","RUSTSEC-2025-0129","RUSTSEC-2025-0130"]},"retained":false,"historicalAffected":[]}],"coverage":[]}