CVE-2025-66170
Medium
Description
The CloudStack Backup plugin has an improper authorization logic in versions 4.21.0.0 and 4.22.0.0. Anyone with authenticated user-account access in CloudStack 4.21.0.0+ environments, where this plugin is enabled and has access to specific APIs can list backups from any account in the environment. This vulnerability does not allow them to see the contents of the backup. Users are recommended to upgrade to version 4.22.0.1, which fixes the issue.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Apache Cloudstack
PublishedMay 8, 2026
First seenMay 8, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- apache cloudstack4.22.0.1 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache cloudstack | 4.21.0.0 ≤ v < 4.22.0.1 | 4.22.0.1 |
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