What is GHSA-6777-p72p-347g?

GHSA-6777-p72p-347g is a security advisory published by GitHub Security Advisories with unknown severity. Improper access control in CloudStack's annotation functionality allows unauthorized comment...

Which CVE IDs does GHSA-6777-p72p-347g cover?

GHSA-6777-p72p-347g covers the following CVE IDs: CVE-2026-66797. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-6777-p72p-347gunknown

Improper access control in CloudStack's annotation functionality allows unauthorized comment...

Vendor

GitHub Security Advisories

Published

August 21, 2026

Last Modified

August 21, 2026

🔗 CVE IDs covered (1)

CVE-2026-66797 →

📋 Description

Improper access control in CloudStack's annotation functionality allows unauthorized comment creation and disclosure.

The addAnnotation and listAnnotation APIs perform an ownership check when an entity's UUID is specified, but fail to honor its result correctly. This lets any authenticated user write annotations to, and disclose existing annotations/comments on, an entity they don't own by simply supplying its UUID.

This issue affects Apache CloudStack: from 4.15.0.0 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-2026-66797
https://lists.apache.org/thread/g6cwddtjrwbh1d56wjz4cfp3fzfm4kbc
https://github.com/advisories/GHSA-6777-p72p-347g