What is GHSA-f6c9-29xf-9j37?

GHSA-f6c9-29xf-9j37 is a security advisory published by GitHub Security Advisories with High severity. Stack-based buffer overflow in mod_vhost_alias in Apache Software Foundation Apache HTTP Server...

Which CVE IDs does GHSA-f6c9-29xf-9j37 cover?

GHSA-f6c9-29xf-9j37 covers the following CVE IDs: CVE-2026-63292. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-f6c9-29xf-9j37?

GHSA-f6c9-29xf-9j37 has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-f6c9-29xf-9j37HighCVSS 7.5

Stack-based buffer overflow in mod_vhost_alias in Apache Software Foundation Apache HTTP Server...

Vendor

GitHub Security Advisories

Published

October 1, 2026

Last Modified

October 1, 2026

🔗 CVE IDs covered (1)

CVE-2026-63292 →

📋 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.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-63292
https://httpd.apache.org/security/vulnerabilities_24.html
http://www.openwall.com/lists/oss-security/2026/10/01/24
https://github.com/advisories/GHSA-f6c9-29xf-9j37