What is CVE-2026-29169?

CVE-2026-29169 is a high-severity vulnerability in Apache Http_server, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-05-04.

How severe is CVE-2026-29169?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Apache Http_server

CVE-2026-29169

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 f…

EPSS: 0.006 (69.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Apache Http_server
Apache Software Foundation Http Server — versions 0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

security@apache.org (vendor-advisory, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-29169?: CVE-2026-29169 is a high-severity vulnerability in Apache Http_server, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-05-04.
How severe is CVE-2026-29169?: High severity. CVSS v3 base score is 7.5 out of 10.