Improper Validation of Specified Quantity in Input 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

EPSS
0.42% (34th percentile)

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  • Snyk IDSNYK-ALMALINUX8-GNUTLSUTILS-16960320
  • published28 May 2026
  • disclosed26 May 2026

Introduced: 26 May 2026

CVE-2026-42013  (opens in a new tab)
CWE-1284  (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. When validating certificates, an oversized Subject Alternative Name (SAN) could cause the validation process to incorrectly fall back to checking the Common Name (CN) field. This could allow a remote attacker to bypass proper certificate validation, potentially leading to spoofing or man-in-the-middle attacks.

CVSS Base Scores

version 3.1