https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-29T16:57:16.890648+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-39395 CVE-2026-39395 — Cosign's verify-blob-attestation reports false positive when payload parsing fails 2026-09-29T16:57:16.907011+00:00

Affected: sigstore cosign

Cosign provides code signing and transparency for containers and binaries. Prior to 3.0.6 and 2.6.3, cosign verify-blob-attestation may erroneously report a "Verified OK" result for attestations with malformed payloads or mismatched predicate types. For old-format bundles and detached signatures, this was due to a logic flaw in the error handling of the predicate type validation. For new-format bundles, the predicate type validation was bypassed completely. This vulnerability is fixed in 3.0.6 and 2.6.3.