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CVE-2025-66170— Apache CloudStack: Any user can list backups that they should not have access to

Quick assessment

Affected
Apache Software Foundation Apache CloudStack
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于授权逻辑不当，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列出任何账户的备份。

AI Predicted 5.3 Difficulty: Easy EPSS 0.49% · P40

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
Apache Software Foundation Apache CloudStack 4.21.0.0≤ 4.22.0.0 affected
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I. Basic Information for CVE-2025-66170

Vulnerability Information
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Vulnerability Title
Apache CloudStack: Any user can list backups that they should not have access to
Source: CVE Program / CVE List V5
Vulnerability Description
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 upgrade to version 4.22.0.1, which fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
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，该漏洞源于授权逻辑不当，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列出任何账户的备份。
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

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache CloudStack 4.21.0.0 ~ 4.22.0.0 -

II. Public POCs for CVE-2025-66170

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III. Intelligence Information for CVE-2025-66170

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Mailing List Discussions for CVE-2025-66170 (1)

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

CVE-2025-66467 8.0 HIGH Apache CloudStack: MinIO policy remains intact on bucket deletion
CVE-2025-69233 6.5 MEDIUM Apache CloudStack: Domain/account resources limits not honored
CVE-2025-66171 Apache CloudStack: Any user can create a new VM from backups they should not have access t
CVE-2025-66172 Apache CloudStack: Any user can attach a volume in their VMs from backups they should not
CVE-2026-25077 Apache CloudStack: Unauthenticated Command Injection in Direct Download Templates
CVE-2026-25199 Apache CloudStack: Proxmox Extension Allows Unauthorized Cross-Tenant Instance Access
CVE-2026-39816 Apache NiFi: Missing Execute Code Required Permission on TinkerpopClientService

IV. Related Vulnerabilities

Same product: Apache CloudStack
Same vendor: Apache Software Foundation
Same weakness: CWE-863

V. Comments for CVE-2025-66170

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