Vulnerability · Published Jun 8, 2026 · Assigned by apache
CVE-2026-29167Apache HTTP Server: mod_ldap per-dir use-after-free
Critical 9.8
In plain English
A critical-severity use-after-free in Apache HTTP Server from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.7%top 47.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | httpd | 2.4.63-13.el10_2.6 | ALSA-2026:60004 |
| AlmaLinux:8 | httpd | 2.4.37-65.module_el8.10.0+4270+e5f13fdb.10 | ALSA-2026:64794 |
| AlmaLinux:9 | httpd | 2.4.62-13.el9_8.6 | ALSA-2026:59347 |
| AlmaLinux:10 | httpd-core | 2.4.63-13.el10_2.6 | ALSA-2026:60004 |
| AlmaLinux:9 | httpd-core | 2.4.62-13.el9_8.6 | ALSA-2026:59347 |
| AlmaLinux:10 | httpd-devel | 2.4.63-13.el10_2.6 | ALSA-2026:60004 |
| AlmaLinux:8 | httpd-devel | 2.4.37-65.module_el8.10.0+4270+e5f13fdb.10 | ALSA-2026:64794 |
| AlmaLinux:9 | httpd-devel | 2.4.62-13.el9_8.6 | ALSA-2026:59347 |
| AlmaLinux:10 | httpd-filesystem | 2.4.63-13.el10_2.6 | ALSA-2026:60004 |
| AlmaLinux:8 | httpd-filesystem | 2.4.37-65.module_el8.10.0+4270+e5f13fdb.10 | ALSA-2026:64794 |
| AlmaLinux:9 | httpd-filesystem | 2.4.62-13.el9_8.6 | ALSA-2026:59347 |
| AlmaLinux:10 | httpd-manual | 2.4.63-13.el10_2.6 | ALSA-2026:60004 |
| AlmaLinux:8 | httpd-manual | 2.4.37-65.module_el8.10.0+4270+e5f13fdb.10 | ALSA-2026:64794 |
| AlmaLinux:9 | httpd-manual | 2.4.62-13.el9_8.6 | ALSA-2026:59347 |
| AlmaLinux:10 | httpd-tools | 2.4.63-13.el10_2.6 | ALSA-2026:60004 |
| AlmaLinux:8 | httpd-tools | 2.4.37-65.module_el8.10.0+4270+e5f13fdb.10 | ALSA-2026:64794 |
| AlmaLinux:9 | httpd-tools | 2.4.62-13.el9_8.6 | ALSA-2026:59347 |
| AlmaLinux:8 | mod_http2 | 1.15.7-10.module_el8.10.0+4233+8b7d9181.7 | ALSA-2026:64794 |
| AlmaLinux:10 | mod_ldap | 2.4.63-13.el10_2.6 | ALSA-2026:60004 |
| AlmaLinux:8 | mod_ldap | 2.4.37-65.module_el8.10.0+4270+e5f13fdb.10 | ALSA-2026:64794 |
| AlmaLinux:9 | mod_ldap | 2.4.62-13.el9_8.6 | ALSA-2026:59347 |
| AlmaLinux:10 | mod_lua | 2.4.63-13.el10_2.6 | ALSA-2026:60004 |
| AlmaLinux:9 | mod_lua | 2.4.62-13.el9_8.6 | ALSA-2026:59347 |
| AlmaLinux:8 | mod_md | 1:2.0.8-8.module_el8.10.0+4088+57f011c1.2 | ALSA-2026:64794 |
| AlmaLinux:10 | mod_proxy_html | 1:2.4.63-13.el10_2.6 | ALSA-2026:60004 |
| AlmaLinux:8 | mod_proxy_html | 1:2.4.37-65.module_el8.10.0+4270+e5f13fdb.10 | ALSA-2026:64794 |
| AlmaLinux:9 | mod_proxy_html | 1:2.4.62-13.el9_8.6 | ALSA-2026:59347 |
| AlmaLinux:10 | mod_session | 2.4.63-13.el10_2.6 | ALSA-2026:60004 |
| AlmaLinux:8 | mod_session | 2.4.37-65.module_el8.10.0+4270+e5f13fdb.10 | ALSA-2026:64794 |
| AlmaLinux:9 | mod_session | 2.4.62-13.el9_8.6 | ALSA-2026:59347 |
| AlmaLinux:10 | mod_ssl | 1:2.4.63-13.el10_2.6 | ALSA-2026:60004 |
| AlmaLinux:8 | mod_ssl | 1:2.4.37-65.module_el8.10.0+4270+e5f13fdb.10 | ALSA-2026:64794 |
| AlmaLinux:9 | mod_ssl | 1:2.4.62-13.el9_8.6 | ALSA-2026:59347 |
| Alpine:v3.21 | apache2 | 2.4.68-r0 | ALPINE-CVE-2026-29167 |
| Alpine:v3.22 | apache2 | 2.4.68-r0 | ALPINE-CVE-2026-29167 |
| Alpine:v3.23 | apache2 | 2.4.68-r0 | ALPINE-CVE-2026-29167 |
| Alpine:v3.24 | apache2 | 2.4.68-r0 | ALPINE-CVE-2026-29167 |
| Debian:12 | apache2 | 2.4.68-1~deb12u1 | DEBIAN-CVE-2026-29167 |
| Debian:13 | apache2 | 2.4.68-1~deb13u1 | DEBIAN-CVE-2026-29167 |
| Debian:14 | apache2 | 2.4.68-1 | DEBIAN-CVE-2026-29167 |
| Rocky Linux:10 | httpd | 0:2.4.63-13.el10_2.6 | RLSA-2026:60004 |
| Rocky Linux:8 | httpd | 0:2.4.37-65.module+el8.10.0+1830+22f0c9e0 | RLSA-2026:64794 |
| Rocky Linux:8 | httpd | 0:2.4.37-65.module+el8.10.0+40257+286895ef.9 | RLSA-2026:64794 |
| Rocky Linux:8 | httpd | 0:2.4.37-65.module+el8.10.0+2061+8d03fdec.5 | RLSA-2026:64794 |
| Rocky Linux:8 | httpd | 0:2.4.37-65.module+el8.10.0+1842+4a9649e8.2 | RLSA-2026:64794 |
| Rocky Linux:8 | httpd | 0:2.4.37-65.module+el8.10.0+1938+3b7755d4.3 | RLSA-2026:64794 |
| Rocky Linux:8 | httpd | 0:2.4.37-65.module+el8.10.0+1984+1bed3124.4 | RLSA-2026:64794 |
| Rocky Linux:8 | httpd | 0:2.4.37-65.module+el8.10.0+40045+6ce8579b.6 | RLSA-2026:64794 |
| Rocky Linux:8 | httpd | 0:2.4.37-65.module+el8.10.0+40197+0231e209.8 | RLSA-2026:64794 |
| Rocky Linux:8 | httpd | 0:2.4.37-65.module+el8.10.0+40053+5a18018e.7 | RLSA-2026:64794 |
| Rocky Linux:8 | httpd | 0:2.4.37-65.module+el8.10.0+40206+be2c8a50.8 | RLSA-2026:64794 |
| Rocky Linux:8 | httpd | 0:2.4.37-65.module+el8.10.0+1840+b070a976.1 | RLSA-2026:64794 |
| Rocky Linux:9 | httpd | 0:2.4.62-13.el9_8.6 | RLSA-2026:59347 |
| Rocky Linux:8 | mod_http2 | 0:1.15.7-10.module+el8.10.0+1830+22f0c9e0 | RLSA-2026:64794 |
| Rocky Linux:8 | mod_http2 | 0:1.15.7-10.module+el8.10.0+1775+6b057638 | RLSA-2026:64794 |
| Rocky Linux:8 | mod_http2 | 0:1.15.7-10.module+el8.10.0+40257+286895ef.7 | RLSA-2026:64794 |
| Rocky Linux:8 | mod_http2 | 0:1.15.7-10.module+el8.10.0+40204+716978aa.6 | RLSA-2026:64794 |
| Rocky Linux:8 | mod_http2 | 0:1.15.7-10.module+el8.10.0+1938+3b7755d4.3 | RLSA-2026:64794 |
| Rocky Linux:8 | mod_http2 | 0:1.15.7-10.module+el8.10.0+1883+38ed6c58.1 | RLSA-2026:64794 |
| Rocky Linux:8 | mod_http2 | 0:1.15.7-10.module+el8.10.0+40197+0231e209.5 | RLSA-2026:64794 |
| Rocky Linux:8 | mod_http2 | 0:1.15.7-10.module+el8.10.0+2061+8d03fdec.4 | RLSA-2026:64794 |
| Rocky Linux:8 | mod_md | 1:2.0.8-8.module+el8.9.0+1370+89cc8ad5 | RLSA-2026:64794 |
| Rocky Linux:8 | mod_md | 1:2.0.8-8.module+el8.10.0+40053+5a18018e.2 | RLSA-2026:64794 |
| Ubuntu:22.04:LTS | apache2 | 2.4.52-1ubuntu4.23 | USN-8516-1 |
| Ubuntu:22.04:LTS | apache2 | 2.4.52-1ubuntu4.23 | UBUNTU-CVE-2026-29167 |
| Ubuntu:24.04:LTS | apache2 | 2.4.58-1ubuntu8.15 | UBUNTU-CVE-2026-29167 |
| Ubuntu:24.04:LTS | apache2 | 2.4.58-1ubuntu8.15 | USN-8516-1 |
| Ubuntu:25.10 | apache2 | no fix listed | UBUNTU-CVE-2026-29167 |
| Ubuntu:26.04:LTS | apache2 | 2.4.66-2ubuntu2.4 | USN-8516-1 |
| Ubuntu:26.04:LTS | apache2 | 2.4.66-2ubuntu2.4 | UBUNTU-CVE-2026-29167 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache HTTP Server | 2.4.0 – through 2.4.67 |
Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H