What is CVE-2026-64655?

CVE-2026-64655 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. GitHub CLI: Attestation Verification Bypass via Unescaped Regex Metacharacters in SAN Matching

Which CVE IDs does CVE-2026-64655 cover?

CVE-2026-64655 covers the following CVE IDs: CVE-2026-64655. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by CVE-2026-64655?

CVE-2026-64655 affects 1 product, including: azl3 gh 2.62.0-20 on Azure Linux 3.0.

CVE-2026-64655Low

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

Vendor

Microsoft Security Response Center (MSRC)

Published

August 14, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-64655 →

🎯 Affected products1

azl3 gh 2.62.0-20 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 2.97.0-1

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64655
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade