Improper Validation of Specified Quantity in Input 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

EPSS
0.42% (34th percentile)

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  • Snyk IDSNYK-SLES157-LIBGNUTLSXXDEVEL-17101792
  • published30 May 2026
  • disclosed29 May 2026

Introduced: 29 May 2026

CVE-2026-42013  (opens in a new tab)
CWE-1284  (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. 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