Time-of-check Time-of-use (TOCTOU) Race Condition in Apache CloudStack - CVE-2025-69233
Published: May 12, 2026
Vulnerability identifier: #VU131154
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-69233
CWE-ID: CWE-367
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 cause a denial of service.
The vulnerability exists due to time-of-check time-of-use race conditions in the resource count check and increment logic when allocating account or domain resources. A remote user can trigger concurrent resource allocation operations to cause a denial of service.
Missing validations also contribute to the issue by allowing configured allocation limits to be exceeded.
How to mitigate CVE-2025-69233
Install security update from vendor's website.