CVE-2026-33007
Analyzed Analyzed - Analysis Complete
NULL pointer dereference in Apache HTTP Server

Publication date: 2026-05-04

Last updated on: 2026-05-04

Assigner: Apache Software Foundation

Description
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.
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Meta Information
Published
2026-05-04
Last Modified
2026-05-04
Generated
2026-06-16
AI Q&A
2026-05-05
EPSS Evaluated
2026-06-15
NVD
CVE-2026-33007
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
apache http_server From 2.4.0 (inc) to 2.4.67 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability is a NULL pointer dereference in the mod_authn_socache module of Apache HTTP Server versions 2.4.66 and earlier.

It allows an unauthenticated remote user to cause a crash of a child process when the server is configured as a caching forward proxy.

Impact Analysis

The impact of this vulnerability is that an unauthenticated remote attacker can crash a child process of the Apache HTTP Server.

This can lead to denial of service conditions, affecting the availability of the server.

Mitigation Strategies

Users are recommended to upgrade to Apache HTTP Server version 2.4.67, which fixes this issue.

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