{"action":"Upgrade github.com/cloudflare/circl to 1.6.3 or later.","affected":[{"fixed":"1.6.3","introduced":"0"}],"component":"github.com/cloudflare/circl","cve_ids":["CVE-2026-1229"],"ecosystem":"Go","epss":0.00426,"exploited":false,"fixed_versions":["1.6.3"],"ghsa_id":"GHSA-q9hv-hpm4-hj6x","id":"tcs_01M5KGEFV0WZ6DAVP4WP6FP28Z","modified_at":"2026-03-09T02:03:40.254213Z","published_at":"2026-02-27T02:17:00Z","references":["https://osv.dev/vulnerability/GO-2026-4550","https://github.com/cloudflare/circl/security/advisories/GHSA-q9hv-hpm4-hj6x","https://nvd.nist.gov/vuln/detail/CVE-2026-1229","https://github.com/cloudflare/circl/pull/583","https://github.com/cloudflare/circl/releases/tag/v1.6.3"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"GO-2026-4550","url":"https://osv.dev/vulnerability/GO-2026-4550"},{"source":"nvd","source_id":"CVE-2026-1229","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1229"}],"summary":"CIRCL has an incorrect calculation in secp384r1 CombinedMult in github.com/cloudflare/circl"}