CVE-2026-33308

[CVE catalog]

Severity

Medium · CVSS 6.8CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

Published

Mar 24, 2026, 1:36:50 AM UTC

Source

[NVD] · [CVE record]

EPSS

0.21% · Oct 25, 2026

A flaw was found in mod_gnutls, a TLS module for Apache HTTPD. Prior to version 0.13.0, the module's client certificate verification process did not properly validate the key purpose specified in the Extended Key Usage (EKU) extension. This oversight could allow a remote attacker, possessing a valid client certificate issued by a trusted Certificate Authority (CA) but intended for a different use, to improperly access resources that require TLS client authentication. This vulnerability enables unauthorized access to protected resources. Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.