What is GHSA-5c78-m4xc-xx66?

GHSA-5c78-m4xc-xx66 is a security advisory published by GitHub Security Advisories with Critical severity. Server-Side Request Forgery (SSRF) vulnerability in Apache CloudStack's webhook module,...

Which CVE IDs does GHSA-5c78-m4xc-xx66 cover?

GHSA-5c78-m4xc-xx66 covers the following CVE IDs: CVE-2026-59085. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-5c78-m4xc-xx66?

GHSA-5c78-m4xc-xx66 has a CVSS v3 base score of 9.1, published by GitHub Security Advisories.

GHSA-5c78-m4xc-xx66CriticalCVSS 9.1

Server-Side Request Forgery (SSRF) vulnerability in Apache CloudStack's webhook module,...

Vendor

GitHub Security Advisories

Published

August 21, 2026

Last Modified

August 25, 2026

🔗 CVE IDs covered (1)

CVE-2026-59085 →

📋 Description

Server-Side Request Forgery (SSRF) vulnerability in Apache CloudStack's webhook module, exploitable via webhook delivery requests.

This issue affects Apache CloudStack: from 4.20.0.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.

Users are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, which fixes the issue.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-59085
https://lists.apache.org/thread/g6cwddtjrwbh1d56wjz4cfp3fzfm4kbc
https://github.com/advisories/GHSA-5c78-m4xc-xx66