{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"github.com/sigstore/timestamp-authority","cve_ids":["CVE-2025-66564"],"ecosystem":"Go","epss":0.00443,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-4qg8-fj49-pxjh","id":"tcs_01M5KGC6HPWW0Y6M7JQKFA5830","modified_at":"2026-02-04T03:13:38.955698Z","published_at":"2025-12-08T21:31:36Z","references":["https://osv.dev/vulnerability/GO-2025-4192","https://github.com/sigstore/timestamp-authority/security/advisories/GHSA-4qg8-fj49-pxjh","https://nvd.nist.gov/vuln/detail/CVE-2025-66564","https://github.com/sigstore/timestamp-authority/commit/0cae34e197d685a14904e0bad135b89d13b69421"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GO-2025-4192","url":"https://osv.dev/vulnerability/GO-2025-4192"},{"source":"nvd","source_id":"CVE-2025-66564","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66564"}],"summary":"Sigstore Timestamp Authority allocates excessive memory during request parsing in github.com/sigstore/timestamp-authority"}