Severity: important Affected versions:
- Apache CloudStack 4.21.0.0 through 4.22.0.0 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. Credit: Fabricio Duarte <[email protected]> (reporter) Gabriel Ortiga Fernandes <[email protected]> (reporter) Gabriel Pordeus Santos <[email protected]> (reporter) References: https://lists.apache.org/thread/n8mt5b7wkpysstb8w7rr9f02kc5cq2xm https://cloudstack.apache.org/ https://www.cve.org/CVERecord?id=CVE-2025-66171
