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CVE-2026-29169 Details

Description

A NULL pointer dereference in mod_dav_lock in Apache HTTP Server 2.4.66 and earlier may allow an attacker to crash the server with a malicious request.mod_dav_lock is not used internally by mod_dav or mod_dav_fs. The only known use-case for mod_dav_lock was mod_dav_svn from Apache Subversion earlier than version 1.2.0. Users are recommended to upgrade to version 2.4.66, which fixes this issue, or remove mod_dav_lock.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://www.openwall.com/lists/oss-security/2026/05/04/20	CVE	Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2026/05/05/12	CVE
https://httpd.apache.org/security/vulnerabilities_24.html	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-476	NULL Pointer Dereference	[email protected]

Affected Products

Product	Versions
apache http server	< 2.4.67
CPE cpe:2.3:a:apache:http_server:::::::: Remediation No remediation found in references.

Change History

7 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	CISA-ADP
Jun 17, 2026	CVE Modified	[email protected]
May 5, 2026	CVE Modified	CVE
May 5, 2026	Initial Analysis	[email protected]
May 4, 2026	CVE Modified	CVE
May 4, 2026	CVE Modified	CISA-ADP
May 4, 2026	New CVE Received	[email protected]