CVE-2026-29169: exploitation status and patch state

CVE-2026-29169 · CVSS 7.5 HIGH · patch available

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.

Is CVE-2026-29169 exploited?

• Not in the CISA KEV catalog.
• Public exploit code: none found in monitored sources.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

• CBL-Mariner Releases

What PlainSec published about CVE-2026-29169

• Apache Patch Hides Module-Specific Exposure Across Hosts (2026-05-07)
• Apache Protocol Parsers Expose Servers to RCE and DoS (2026-05-05)

Primary sources

• NVD record

What this record does not say

• No EPSS score.
• No affected package data.

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.