Improper Validation of Specified Quantity in Input Affecting gnutls package, versions <0:3.6.16-8.el8_10.6


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.4% (32nd percentile)

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  • Snyk IDSNYK-ORACLE8-GNUTLS-17139636
  • published3 Jun 2026
  • disclosed26 May 2026

Introduced: 26 May 2026

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

How to fix?

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

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnutls package and not the gnutls package as distributed by Oracle. See How to fix? for Oracle: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