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CVE-2025-66467— Apache CloudStack: MinIO policy remains intact on bucket deletion

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存在安全漏洞，该漏洞源于删除存储桶时MinIO策略清理缺失，可能导致用户保留对先前拥有存储桶的访问权限，当其他用户创建同名存储桶时，先前所有者可通过之前生成的访问密钥和秘密密钥获得未授权读写访问。

CVSS 8.0 · High EPSS 0.37% · P29

Possible ATT&CK Techniques 1 AI

T1528 · Steal Application Access Token

Affected Version Matrix 2

VendorProduct Version RangeStatus
Apache Software Foundation Apache CloudStack 4.19.0.0≤ 4.20.2.0 affected
4.21.0.0≤ 4.22.0.0 affected
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I. Basic Information for CVE-2025-66467

Vulnerability Information
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Vulnerability Title
Apache CloudStack: MinIO policy remains intact on bucket deletion
Source: CVE Program / CVE List V5
Vulnerability Description
Missing MinIO policy cleanup on bucket deletion via Apache CloudStack allows users to retain access to buckets which they previously owned. If another user creates a new bucket with the same name, the previous owners can gain unauthorized read and write access to it by using the previously generated access and secret keys. Users are recommended to upgrade to Apache CloudStack versions 4.20.3.0 or 4.22.0.1, or later, which fixes this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
清理环节不完整
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存在安全漏洞，该漏洞源于删除存储桶时MinIO策略清理缺失，可能导致用户保留对先前拥有存储桶的访问权限，当其他用户创建同名存储桶时，先前所有者可通过之前生成的访问密钥和秘密密钥获得未授权读写访问。
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 4.19.0.0 ~ 4.20.2.0 -

II. Public POCs for CVE-2025-66467

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III. Intelligence Information for CVE-2025-66467

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Mailing List Discussions for CVE-2025-66467 (1)

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

CVE-2025-69233 6.5 MEDIUM Apache CloudStack: Domain/account resources limits not honored
CVE-2025-66170 Apache CloudStack: Any user can list backups that they should not have access to
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-459

V. Comments for CVE-2025-66467

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