CVE-2026-63292
Publication date 1 October 2026
Last updated 17 October 2026
Ubuntu priority
Description
Stack-based buffer overflow in mod_vhost_alias in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows a remote client to cause a denial of service or potentially execute arbitrary code via an HTTP request with a Host header exceeding 8192 bytes when VirtualDocumentRoot uses a hostname format specifier and LimitRequestFieldSize is raised above the default. Users are recommended to upgrade to version 2.4.69, which fixes this issue.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| apache2 | 26.10 stonking |
Vulnerable
|
| 26.04 LTS resolute |
Fixed in 2.4.66-2ubuntu2.6
|
|
| 24.04 LTS noble |
Fixed in 2.4.58-1ubuntu8.17
|
|
| 22.04 LTS jammy |
Fixed in 2.4.52-1ubuntu4.25
|
|
| 20.04 LTS focal |
Fixed in 2.4.41-4ubuntu3.23+esm9
|
|
| 18.04 LTS bionic |
Fixed in 2.4.29-1ubuntu4.27+esm13
|
|
| 16.04 LTS xenial |
Fixed in 2.4.18-2ubuntu3.17+esm22
|
|
| 14.04 LTS trusty |
Fixed in 2.4.7-1ubuntu4.22+esm17
|
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CVSS version: CVSS v3.0
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
References
Related Ubuntu Security Notices (USN)
- USN-8931-1
- Apache HTTP Server vulnerabilities
- 14 October 2026