The CloudStack Backup plugin has an improper authorization logic in versions 4.21.0.0 and 4.22.0.0.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. May 8, 2026 · NIST NVD

   Detected

   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 up

2. Oct 7, 2026 · NIST NVD

   Updated

   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 up

Affected

• cpe apache/cloudstackversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2025-66170

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2025-66170

  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 i

  nvd.nist.gov

References

• Mailing List · openwall.com
• Mailing List · lists.apache.org