VDB
CVE-2026-66721
CVE-2026-66721
PUBLISHED
CVSS 2.7 LOW
Reported by apache · Published August 21, 2026
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.
Risk Scores
CVSS 3.1
2.7
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache CloudStack | 4.12.0.0, 4.21.0.0 |
| Apache Software Foundation | Apache CloudStack | 4.12.0.0, 4.21.0.0, 4.12.0.0 |
Timeline
- Aug 21, 2026 EPSS Score
- Aug 21, 2026 CVE Published
- Aug 22, 2026 Coalition ESS Score
- Aug 24, 2026 EPSS Score
- Aug 25, 2026 EPSS Score
- Aug 27, 2026 CVE Updated
- Aug 28, 2026 EPSS Score
- Sep 3, 2026 Security Advisory