Improper access control in Apache CloudStack - CVE-2025-66467
Published: May 12, 2026
Vulnerability identifier: #VU131153
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-66467
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Apache Foundation
Affected software:
Apache CloudStack
Apache CloudStack
Detailed vulnerability description
The vulnerability allows a remote user to gain unauthorized read and write access to another user's bucket.
The vulnerability exists due to improper access control in MinIO policy cleanup on bucket deletion when a bucket is deleted and later recreated with the same name. A remote user can reuse previously generated access and secret keys to gain unauthorized read and write access to another user's bucket.
Exploitation requires another user to create a new bucket with the same name as a previously deleted bucket.
How to mitigate CVE-2025-66467
Install security update from vendor's website.