PT-2026-38915 · Cloudstack · Cloudstack Backup

Gabriel Pordeus

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CVE-2025-66172

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Published

2026-05-08

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Updated

2026-05-10

CVSS v3.1

8.1

High

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Name of the Vulnerable Software and Affected Versions CloudStack Backup plugin versions 4.21.0.0 through 4.22.0.0
Description The CloudStack Backup plugin contains improper access logic. Authenticated users in environments where this plugin is enabled can access specific APIs to restore a volume from another user's backups and attach that volume to their own virtual machines.
Recommendations Upgrade to version 4.22.0.1.

Fix

Found an issue in the description? Have something to add? Feel free to write us 👾
dbugs@ptsecurity.com

Weakness Enumeration

CWE-359

Related Identifiers

CVE-2025-66172

Affected Products

Cloudstack Backup