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

Overview

Severity

N/A

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-08-11

Last Updated

2026-08-23

EPSS Score

0.34% (percentile: 25.2%)

Affected Products (1)

Other

• 21668-17084

Revision History

• 2026-08-11: Information published.
• 2026-08-14: Information published.
• 2026-08-23: Information published.