What is CVE-2026-29167?

CVE-2026-29167 is a critical-severity vulnerability in Apache Http_server, classified under Use After Free. CVSS score: 9.8/10. Published 2026-06-08.

How severe is CVE-2026-29167?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Use After Free in Apache Http_server

CVE-2026-29167

Use After Free vulnerability in Apache HTTP Server with mod_ldap in per-directory configuration This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.

Vulnerability class: Use-After-Free

EPSS: 0.007 (47.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apache Http_server
Apache Software Foundation Http Server — versions 2.4.0

Weakness classification (CWE)

CWE-416 — Use After Free

References

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

Frequently asked questions

What is CVE-2026-29167?: CVE-2026-29167 is a critical-severity vulnerability in Apache Http_server, classified under Use After Free. CVSS score: 9.8/10. Published 2026-06-08.
How severe is CVE-2026-29167?: Critical severity. CVSS v3 base score is 9.8 out of 10.