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.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-4571-1 [ERRATUM] [DLA 4571-1] apache2 security update
Debian DSA Debian DSA DSA-6248-1 apache2 security update
Ubuntu USN Ubuntu USN USN-8239-1 Apache HTTP Server vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 12 May 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 04 May 2026 20:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*

Mon, 04 May 2026 18:30:00 +0000

Type Values Removed Values Added
References

Mon, 04 May 2026 18:15:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache http Server
Vendors & Products Apache
Apache http Server

Mon, 04 May 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 04 May 2026 15:00:00 +0000

Type Values Removed Values Added
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.
Title Apache HTTP Server: mod_authn_socache crash
Weaknesses CWE-476
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-05-05T15:07:42.103Z

Reserved: 2026-03-17T16:46:05.025Z

Link: CVE-2026-33007

cve-icon Vulnrichment

Updated: 2026-05-04T17:32:48.215Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-04T15:16:04.107

Modified: 2026-05-04T20:22:13.073

Link: CVE-2026-33007

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-05-04T14:41:27Z

Links: CVE-2026-33007 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-04T18:00:05Z

Weaknesses