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

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-64655 · Microsoft / collected KEV context

EUVD-2026-54222

GHSA-mm27-mwq9-fr5g

GO-2026-6767

cve-program · CVE-2026-64655

• https://github.com/cli/cli/security/advisories/GHSA-mm27-mwq9-fr5g
• https://github.com/cli/cli/commit/55dbb4dc6b7edb10b48e3d7fc5bccd32318d1b55
• https://github.com/cli/cli/releases/tag/v2.97.0

euvd · EUVD-2026-54222

• https://github.com/cli/cli/security/advisories/GHSA-mm27-mwq9-fr5g
• https://github.com/cli/cli/commit/55dbb4dc6b7edb10b48e3d7fc5bccd32318d1b55
• https://github.com/cli/cli/releases/tag/v2.97.0

nvd · CVE-2026-64655

• https://github.com/cli/cli/commit/55dbb4dc6b7edb10b48e3d7fc5bccd32318d1b55
• https://github.com/cli/cli/releases/tag/v2.97.0
• https://github.com/cli/cli/security/advisories/GHSA-mm27-mwq9-fr5g

osv · GHSA-mm27-mwq9-fr5g

• https://github.com/cli/cli/security/advisories/GHSA-mm27-mwq9-fr5g
• https://nvd.nist.gov/vuln/detail/CVE-2026-64655
• https://github.com/cli/cli/commit/55dbb4dc6b7edb10b48e3d7fc5bccd32318d1b55
• https://github.com/cli/cli
• https://github.com/cli/cli/releases/tag/v2.97.0

osv · GO-2026-6767

• https://github.com/cli/cli/security/advisories/GHSA-mm27-mwq9-fr5g
• https://nvd.nist.gov/vuln/detail/CVE-2026-64655
• https://github.com/cli/cli/commit/55dbb4dc6b7edb10b48e3d7fc5bccd32318d1b55
• https://github.com/cli/cli/releases/tag/v2.97.0

No related operational record is retained in the current change model.