Improper Certificate Validation Affecting gnutls-utils package, versions <0:3.6.16-8.el8_10.6


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

Social Trends
EPSS
0.48% (38th percentile)

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  • Snyk IDSNYK-ALMALINUX8-GNUTLSUTILS-16960310
  • published28 May 2026
  • disclosed26 May 2026

Introduced: 26 May 2026

CVE-2026-42011  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 gnutls-utils to version 0:3.6.16-8.el8_10.6 or higher.
This issue was patched in ALSA-2026:20611.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnutls-utils package and not the gnutls-utils package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities (CAs) only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate validation. This bypass could lead to the acceptance of invalid certificates, potentially enabling spoofing or man-in-the-middle attacks against affected systems.

CVSS Base Scores

version 3.1