---
title: "CVE-2026-29167\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2026-29167?format=md
keywords: index, follow
---

# CVE-2026-29167

Publication date 8 June 2026

Last updated 6 August 2026

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**9.8 · Critical**

[Score breakdown](https://ubuntu.com/security/CVE-2026-29167?format=md#impact-score)

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## 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.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| apache2 | 26.04 LTS resolute | Fixed 2.4.66-2ubuntu2.4 |
| 25.10 questing | Ignored end of life, was needs-triage |
| 24.04 LTS noble | Fixed 2.4.58-1ubuntu8.15 |
| 22.04 LTS jammy | Fixed 2.4.52-1ubuntu4.23 |
| 20.04 LTS focal | Fixed 2.4.41-4ubuntu3.23+esm6  Ubuntu Pro |
| 18.04 LTS bionic | Fixed 2.4.29-1ubuntu4.27+esm11  Ubuntu Pro |
| 16.04 LTS xenial | Fixed 2.4.18-2ubuntu3.17+esm20  Ubuntu Pro |
| 14.04 LTS trusty | Fixed 2.4.7-1ubuntu4.22+esm15  Ubuntu Pro |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2026-29167?format=md#patch-details)

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### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| apache2 | * Upstream:   [2cf9b3f](https://github.com/apache/httpd/commit/2cf9b3f393633f43746047e779fdf265a1ad8016) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

9.8 · Critical

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 9.8 · Critical |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-29167)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-29167)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-29167)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-29167)

### Related Ubuntu Security Notices (USN)

+ [USN-8516-1](https://usn.ubuntu.com/USN-8516-1)
+ Apache HTTP Server vulnerabilities
+ 8 July 2026

+ [USN-8589-1](https://usn.ubuntu.com/USN-8589-1)
+ Apache HTTP Server vulnerabilities
+ 22 July 2026

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-29167>
* <https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2026-29167>
* <https://httpd.apache.org/security/vulnerabilities_24.html>
* <http://www.openwall.com/lists/oss-security/2026/06/08/4>