Improper Certificate Validation Affecting gnutls-utils-debuginfo package, versions <0:3.8.10-4.amzn2023.0.2


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.44% (35th percentile)

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  • Snyk IDSNYK-AMZN2023-GNUTLSUTILSDEBUGINFO-17290218
  • published10 Jun 2026
  • disclosed7 May 2026

Introduced: 7 May 2026

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

How to fix?

Upgrade Amazon-Linux:2023 gnutls-utils-debuginfo to version 0:3.8.10-4.amzn2023.0.2 or higher.
This issue was patched in ALAS2023-2026-1808.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnutls-utils-debuginfo package and not the gnutls-utils-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 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