CVE-2026-33007: Apache HTTP Server

Medium severity, CVSS 5.3. EPSS: 1.2% chance of exploitation in the next 30 days.

A NULL pointer dereference in the mod_authn_socache in Apache HTTP Server 2.4.66 and earlier allows an unauthenticated remote user to crash a child process in a caching forward proxy configuration. Users are recommended to upgrade to version 2.4.67, which fixes this issue.

Affected products

• Apache HTTP Server: from 2.4.0, before 2.4.67 (fixed in 2.4.67)

Published 2026-05-04. Last modified 2026-06-17.