CVE-2026-27145: Inefficient candidate hostname parsing in crypto/x509

Overview

Severity

Medium (CVSS 6.5)

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Jun

Released

2026-06-06

Last Updated

2026-06-28

EPSS Score

0.94% (percentile: 57.0%)

Detection & Weaponization (1 sources)

Maturity: Exploit

• GitHub PoC: 1 repositories

Affected Products (7)

Mariner

• azl3 gcc 13.2.0-7 on Azure Linux 3.0

Open Source Software

• azl3 tensorflow 2.16.1-11 on Azure Linux 3.0
• azl3 golang 1.25.10-1 on Azure Linux 3.0
• azl3 golang 1.26.3-1 on Azure Linux 3.0
• azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0
• azl3 golang 1.25.11-3 on Azure Linux 3.0
• azl3 golang 1.26.4-3 on Azure Linux 3.0

Revision History

• 2026-06-06: Information published.
• 2026-06-07: Information published.
• 2026-06-07: Information published.
• 2026-06-09: Information published.
• 2026-06-28: Information published.