GitHub CLI: Attestation Verification Bypass via Unescaped Regex Metacharacters in SAN Matching

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CVE-2026-64655 GitHub CLI: Attestation Verification Bypass via Unescaped Regex Metacharacters in SAN Matching

GitHub CLI gh is GitHub’s official command line tool. Prior to 2.97.0, gh attestation verify builds the certificate Subject Alternative Name matcher from the --signer-repo and --signer-workflow flag values without escaping regex metacharacters, so a user-supplied repository or workflow name is...

CVE-2026-64655

GitHub CLI (gh) prior to v2.97.0 builds the certificate Subject Alternative Name matcher from --signer-repo and --signer-workflow values without escaping regex metacharacters, causing user-supplied names to be treated as regular expressions. Because characters like '.' can appear in repository/wo...

CVE-2026-66402

FreeRDP before 3.29.0 affected versions = 3.28.0 contains multiple TLS certificate identity validation weaknesses in tlsverifycertificate, tlsmatchhostname, and x509utilsgetdnsnames. Because FreeRDP performs custom Common Name and DNS SAN string matching instead of using OpenSSL's length-aware...