{"action":"Upgrade github.com/sigstore/sigstore-go to 1.2.1 or later.","affected":[{"fixed":"1.2.1","introduced":"0"}],"component":"github.com/sigstore/sigstore-go","cve_ids":["CVE-2026-54787"],"ecosystem":"Go","epss":0.00134,"exploited":false,"fixed_versions":["1.2.1"],"ghsa_id":"GHSA-wqqc-jjcq-vfxm","id":"tcs_01M5KFR1HD1QRKR6H9WE5NN2CZ","modified_at":"2026-09-10T03:51:12.439713893Z","published_at":"2026-07-31T21:58:39Z","references":["https://osv.dev/vulnerability/GHSA-wqqc-jjcq-vfxm","https://github.com/sigstore/sigstore-go/security/advisories/GHSA-wqqc-jjcq-vfxm","https://github.com/sigstore/sigstore-go/pull/642","https://github.com/sigstore/sigstore-go/commit/4594ab4c779d08be1f4419803a8249188f35ed5f","https://github.com/sigstore/sigstore-go","https://github.com/sigstore/sigstore-go/releases/tag/v1.2.1"],"severity":{"label":"low","score":3.1},"sources":[{"source":"osv","source_id":"GHSA-wqqc-jjcq-vfxm","url":"https://osv.dev/vulnerability/GHSA-wqqc-jjcq-vfxm"}],"summary":"sigstore-go fails to check signature timestamps against a signing key's validity period"}