Improper Certificate Validation Affecting libgnutlsxx-devel package, versions <3.8.3-150600.4.20.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

Social Trends
EPSS
0.35% (28th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-SLES157-LIBGNUTLSXXDEVEL-17101914
  • published30 May 2026
  • disclosed29 May 2026

Introduced: 29 May 2026

CVE-2026-42012  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 libgnutlsxx-devel to version 3.8.3-150600.4.20.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgnutlsxx-devel package and not the libgnutlsxx-devel package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier (URI) or Service (SRV) Subject Alternative Names (SANs). This could cause the certificate validation process to incorrectly fall back to checking DNS hostnames against the Common Name (CN), potentially allowing the attacker to spoof legitimate services or intercept sensitive information.

CVSS Base Scores

version 3.1