CVE-2025-66171

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://lists.apache.org/thread/n8mt5b7wkpysstb8w7rr9f02kc5cq2xm	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/05/09/2	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:cloudstack:*:*:*:*:*:*:*:*

History

30 Sep 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) El plugin de CloudStack Backup tiene una lógica de acceso inadecuada en las versiones 4.21.0.0 y 4.22.0.0. Cualquier persona con acceso autenticado a una cuenta de usuario en entornos de CloudStack 4.21.0.0+, donde este plugin está habilitado y tiene acceso a APIs específicas, puede crear nuevas máquinas virtuales utilizando copias de seguridad de cualquier otro usuario del entorno. Se recomienda a los usuarios del plugin de Backup que utilizan CloudStack 4.21.0.0+ actualizar a la versión 4.22.0.1 de CloudStack, que soluciona este problema.

Information

Published : 2026-05-08 13:16

Updated : 2026-10-07 09:10

NVD link : CVE-2025-66171

Mitre link : CVE-2025-66171

CVE.ORG link : CVE-2025-66171

JSON object : View

Products Affected

apache

cloudstack

CWE

CWE-359

Exposure of Private Personal Information to an Unauthorized Actor

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