CVE-2026-33307

[CVE catalog]

Severity

High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

Mar 24, 2026, 1:34:36 AM UTC

Source

[NVD] · [CVE record]

EPSS

0.35% · Oct 25, 2026

A flaw was found in mod_gnutls, a TLS module for Apache HTTPD. A remote attacker could exploit this vulnerability by sending a specially crafted client certificate chain to a server configured to use client certificates. This could lead to a buffer overflow due to the module not properly checking the length of the certificate chain against a fixed-size array. Successful exploitation would typically result in a denial of service (DoS) due to a server crash, and could theoretically lead to stack corruption. 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.