{"action":"Upgrade github.com/sigstore/timestamp-authority/v2 to 2.0.6 or later.","affected":[{"fixed":"2.0.6","introduced":"0"}],"component":"github.com/sigstore/timestamp-authority/v2","cve_ids":["CVE-2026-39984"],"ecosystem":"Go","epss":0.00099,"exploited":false,"fixed_versions":["2.0.6"],"ghsa_id":"GHSA-xm5m-wgh2-rrg3","id":"tcs_01M5KGPPVZSTNEB8VDVPBP1S3A","modified_at":"2026-06-26T15:44:23.064396068Z","published_at":"2026-06-25T22:34:41Z","references":["https://osv.dev/vulnerability/GO-2026-5763","https://github.com/sigstore/timestamp-authority/security/advisories/GHSA-xm5m-wgh2-rrg3","https://nvd.nist.gov/vuln/detail/CVE-2026-39984","https://github.com/sigstore/timestamp-authority/releases/tag/v2.0.6"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"GO-2026-5763#Go/github.com/sigstore/timestamp-authority/v2","url":"https://osv.dev/vulnerability/GO-2026-5763"},{"source":"nvd","source_id":"CVE-2026-39984","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39984"}],"summary":"Sigstore Timestamp Authority has Improper Certificate Validation in verifier in github.com/sigstore/timestamp-authority"}