Threats Tagged 'cve-2026-39395'

This update for cosign fixes the following issue - CVE-2026-39395: Incorrect attestation verification due to malformed payloads or mismatched predicate types (bsc#1261859). Changes for cosign: - update to 3.0.6: * Fix DSSE predicate check (GHSA-w6c6-c85g-mmv6) (#4801) * Handle whitespace-only certificate annotation (#4760) * fix(sign): closing SignerVerifier too early when signing with a security key (#4761) * Disallow --new-bundle-format and --rfc3161-timestamp (#4762) * support managed keys in conformance testing (#4728) * Add support for GCE metadata server env var (#4732) * fix: preserve per-layer annotations in WriteAttestationsReferrer (#4709) * Fix parsing of in-toto for string predicates * Mark batch of flags for deprecation (#4698) * disallow key and cert identity being used together during verification (#4636) * support key creation in GitLab group (#4704) - Set CGO_ENABLED=1 for fixing s390x failed build - build against a maintained golang version (upstream uses go1.20)

Cosign versions prior to 3.0.6 and 2.6.3 contain a vulnerability where the verify-blob-attestation command may incorrectly report a successful verification for attestations with malformed payloads or mismatched predicate types. This occurs due to improper error handling and bypass of predicate type validation in different bundle formats. The issue is fixed in versions 3.0.6 and 2.6.