NULL Pointer Dereference Affecting httpd:2.4/mod_md package, versions <1:2.0.8-8.module+el8.10.0+23815+1b5e1c66.2


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.51% (40th percentile)

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  • Snyk IDSNYK-RHEL8-HTTPD-16691006
  • published14 May 2026
  • disclosed4 May 2026

Introduced: 4 May 2026

CVE-2026-33007  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade RHEL:8 httpd:2.4/mod_md to version 1:2.0.8-8.module+el8.10.0+23815+1b5e1c66.2 or higher.
This issue was patched in RHSA-2026:22140.

NVD Description

Note: Versions mentioned in the description apply only to the upstream httpd:2.4/mod_md package and not the httpd:2.4/mod_md package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1