{"action":"Upgrade github.com/sigstore/cosign to 2.6.3 or later.","affected":[{"fixed":"3.0.6","introduced":"3.0.0"},{"fixed":"2.6.3","introduced":"0"}],"component":"github.com/sigstore/cosign","cve_ids":["CVE-2026-39395"],"ecosystem":"Go","epss":0.00293,"exploited":false,"fixed_versions":["3.0.6","2.6.3"],"ghsa_id":"GHSA-w6c6-c85g-mmv6","id":"tcs_01M5KFQ9G8QRFEDVRNDFHRX6CE","modified_at":"2026-09-10T03:51:03.642188195Z","published_at":"2026-04-08T00:15:44Z","references":["https://osv.dev/vulnerability/GHSA-w6c6-c85g-mmv6","https://github.com/sigstore/cosign/security/advisories/GHSA-w6c6-c85g-mmv6","https://nvd.nist.gov/vuln/detail/CVE-2026-39395","https://github.com/sigstore/cosign"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"GHSA-w6c6-c85g-mmv6","url":"https://osv.dev/vulnerability/GHSA-w6c6-c85g-mmv6"}],"summary":"Cosign's verify-blob-attestation reports false positive when payload parsing fails"}