The CloudStack Backup plugin has an improper access 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 have access to specific APIs can create new VMs using backups of any other user of the environment.
Backup plugin users using CloudStack 4.21.0.0+ are recommended to upgrade to CloudStack version 4.22.0.1, which fixes this issue.
Backup plugin users using CloudStack 4.21.0.0+ are recommended to upgrade to CloudStack version 4.22.0.1, which fixes this issue.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 08 May 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Apache
Apache cloudstack |
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| Vendors & Products |
Apache
Apache cloudstack |
Fri, 08 May 2026 13:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The CloudStack Backup plugin has an improper access 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 have access to specific APIs can create new VMs using backups of any other user of the environment. Backup plugin users using CloudStack 4.21.0.0+ are recommended to upgrade to CloudStack version 4.22.0.1, which fixes this issue. | |
| Title | Apache CloudStack: Any user can create a new VM from backups they should not have access to | |
| Weaknesses | CWE-359 | |
| References |
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Projects
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Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-05-08T12:11:03.883Z
Reserved: 2025-11-22T19:26:43.923Z
Link: CVE-2025-66171
No data.
Status : Undergoing Analysis
Published: 2026-05-08T13:16:35.483
Modified: 2026-05-08T15:34:56.710
Link: CVE-2025-66171
No data.
OpenCVE Enrichment
Updated: 2026-05-08T15:15:10Z
Weaknesses