CVE-2026-29169
Apache HTTP Server: mod_dav_lock indirect lock crash
Summary
Apache HTTP Server: mod_dav_lock indirect lock crash
Original description
The description as published by the source.
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.
Affected packages
Bitnami
apache
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.4.67"}]}]
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Alpine Linux ALPINE-CVE-2026-29169 apache2 Fixed in: 2.4.67-r0
- Debian DEBIAN-CVE-2026-29169 apache2 Fixed in: 2.4.67-1~deb11u1
- Ubuntu UBUNTU-CVE-2026-29169 apache2 Fixed in: 2.4.7-1ubuntu4.22+esm13
References
- advisory openwall.com
- advisory httpd.apache.org
- web openwall.com
- web nvd.nist.gov