CVE-2026-29167: apache software foundation apache http server Use After Free
CVSS: 9.8v3.1CriticalAnalyzed
AliasesRHSA-2026:59347RHSA-2026:60004RHSA-2026:64794UBUNTU-CVE-2026-29167DEBIAN-CVE-2026-29167
Published 08-06-2026Last modified 09-06-2026
Vulnerability summary
CVE-2026-29167 is a critical (CVSS 9.8) Use After Free vulnerability in apache software foundation apache http server. EPSS estimates a 0.69% chance of exploitation in the next 30 days, higher than 51.8% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
0.69%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 14 · Related 8Timeline
- 08-06-2026PublishedVulnerability first disclosed.
- 09-06-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 5 sources · 1 versionCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSources5 sources · 4.6–9.8
- OSV · Red hatEcosystem advisory · calculated4.6MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.69%
Chance of exploitation in the next 30 days
Percentile
52%
Versus all other CVEs
30-day change
0.00 pp
From 0.69% on 19-09-2026
19-09-202619-10-2026
EPSS score0.69%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat26 products
- httpd< 0:2.4.62-13.el9_8.6 | < 0:2.4.63-13.el10_2.6 | < 0:2.4.37-65.module+el8.10.0+24755+06195b95.10
- httpd-core< 0:2.4.62-13.el9_8.6 | < 0:2.4.63-13.el10_2.6
- httpd-core-debuginfo< 0:2.4.62-13.el9_8.6 | < 0:2.4.63-13.el10_2.6
- httpd-debuginfo< 0:2.4.62-13.el9_8.6 | < 0:2.4.63-13.el10_2.6 | < 0:2.4.37-65.module+el8.10.0+24755+06195b95.10
- httpd-debugsource< 0:2.4.62-13.el9_8.6 | < 0:2.4.63-13.el10_2.6 | < 0:2.4.37-65.module+el8.10.0+24755+06195b95.10
Apache1 product
- http_server≥ 2.4.0, < 2.4.68
Apache software foundation1 product
- apache http server≥ 2.4.0, ≤ 2.4.67
Debian1 product
- apache2< 2.4.68-1~deb12u1 | < 2.4.68-1~deb13u1 | < 2.4.68-1
Ubuntu1 product
- apache2< 2.4.7-1ubuntu4.22+esm15 | < 2.4.18-2ubuntu3.17+esm20 | < 2.4.29-1ubuntu4.27+esm11 | < 2.4.41-4ubuntu3.23+esm6 | < 2.4.52-1ubuntu4.23 | < 2.4.58-1ubuntu8.15 | All versions (No fix recorded) | < 2.4.66-2ubuntu2.4
5 vendors · 30 products
References
19 links- www.openwall.com/lists/oss-security/2026/06/09/1Mailing List
