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CVE-2025-66172— Apache CloudStack: Any user can attach a volume in their VMs from backups they should not have access to

EPSS 0.01% · P1
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I. Basic Information for CVE-2025-66172

Vulnerability Information
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Vulnerability Title
Apache CloudStack: Any user can attach a volume in their VMs from backups they should not have access to
Source: NVD (National Vulnerability Database)
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
侵犯隐私
Source: NVD (National Vulnerability Database)
Vulnerability Title
Apache CloudStack 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache CloudStack是美国阿帕奇（Apache）基金会的一套基础架构即服务（IaaS）云计算平台。该平台主要用于部署和管理大型虚拟机网络。 Apache CloudStack 4.21.0.0版本和4.22.0.0版本存在安全漏洞，该漏洞源于访问逻辑不当，可能导致任何经过身份验证的用户在启用插件的环境中通过特定API从其他用户的备份恢复卷并将其附加到自己的虚拟机。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Apache Software FoundationApache CloudStack 4.21.0.0 ~ 4.22.0.0 -

II. Public POCs for CVE-2025-66172

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III. Intelligence Information for CVE-2025-66172

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Same Patch Batch · Apache Software Foundation · 2026-05-08 · 8 CVEs total

CVE-2025-664678.0 HIGHApache CloudStack: MinIO policy remains intact on bucket deletion
CVE-2025-692336.5 MEDIUMApache CloudStack: Domain/account resources limits not honored
CVE-2026-39816Apache NiFi: Missing Execute Code Required Permission on TinkerpopClientService
CVE-2026-25199Apache CloudStack: Proxmox Extension Allows Unauthorized Cross-Tenant Instance Access
CVE-2026-25077Apache CloudStack: Unauthenticated Command Injection in Direct Download Templates
CVE-2025-66171Apache CloudStack: Any user can create a new VM from backups they should not have access t
CVE-2025-66170Apache CloudStack: Any user can list backups that they should not have access to

IV. Related Vulnerabilities

Same product: Apache CloudStack
Same vendor: Apache Software Foundation
Same weakness: CWE-359

V. Comments for CVE-2025-66172

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