CVE-2026-42012: Gnutls: gnutls: certificate validation bypass due to improper handling of uri and srv sans

Overview

Severity
High (CVSS 7.1)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
Exploit Status
Not Exploited
Patch Tuesday
2026-May
Released
2026-05-31
Last Updated
2026-06-11
EPSS Score
0.35% (percentile: 28.7%)

Affected Products (2)

Open Source Software

  • azl3 gnutls 3.8.3-8 on Azure Linux 3.0

Other

  • 21391-17084

Revision History

  • 2026-05-31: Information published.
  • 2026-06-01: Information published.
  • 2026-06-03: Information published.
  • 2026-06-11: Information published.