What is GHSA-9gq3-xc6j-h3g5?

GHSA-9gq3-xc6j-h3g5 is a security advisory published by GitHub Security Advisories with High severity. Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and...

Which CVE IDs does GHSA-9gq3-xc6j-h3g5 cover?

GHSA-9gq3-xc6j-h3g5 covers the following CVE IDs: CVE-2026-34356. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-9gq3-xc6j-h3g5?

GHSA-9gq3-xc6j-h3g5 has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-9gq3-xc6j-h3g5HighCVSS 7.5

Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and...

Vendor

GitHub Security Advisories

Published

June 8, 2026

Last Modified

June 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-34356 →

📋 Description

Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie*

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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-34356
https://httpd.apache.org/security/vulnerabilities_24.html
https://github.com/advisories/GHSA-9gq3-xc6j-h3g5