CVE-2025-66172 - CVE House
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Status published Unknown CVE-2025-66172

Apache CloudStack: Any user can attach a volume in their VMs from backups they should not have access to

Vulnerability 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 restore a volume from any other user's backups and attach the volume to their own VMs. Backup plugin users using CloudStack 4.21.0.0+ are recommended to upgrade to CloudStack version 4.22.0.1, which fixes this issue.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Gabriel Pordeus

References

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Affected Vendor

Apache Software Foundation

View all reports →

Affected Software

Apache CloudStack
Vulnerable Versions:
4.21.0.0

Timeline

Official Publish: May 8th, 2026
Last Modified: May 10th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

CWE-359

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.