CVE-2026-66721

Published Aug 21, 2026

Last updated an hour ago

Overview

Description
Missing authorization issue for domain admins in CloudStack's host tags listing functionality. Domain Admins, by default, have permission to call the listHostTags API, but the API returns host tags for every host in the environment without domain scoping. It should instead be restricted to only the hosts dedicated to that admin's domain. This issue affects Apache CloudStack: from 4.12.0.0 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.
Source
security@apache.org
NVD status
Awaiting Analysis

Weaknesses

security@apache.org
CWE-862

Social media

Hype score
Not currently trending

References

Sources include official advisories and independent security research.