CVE-2025-66170: Apache CloudStack: Any user can list backups that they should not have access to

["Piotr P. Karwasz" <pkarwasz () apache org>]

Severity: low

Affected versions:

- Apache CloudStack 4.21.0.0 through 4.22.0.0

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.

Credit:

Gabriel Ortiga Fernandes <gabriel.ortiga () hotmail com> (reporter)
Fabricio Duarte <fabricio.duarte.jr () gmail com> (reporter)
Gabriel Pordeus Santos <gabrielpordeus () gmail com> (reporter)

References:

https://lists.apache.org/thread/n8mt5b7wkpysstb8w7rr9f02kc5cq2xm
https://cloudstack.apache.org/
https://www.cve.org/CVERecord?id=CVE-2025-66170