CVE-2026-59654
Published:August 21, 2026
Updated:September 24, 2026
Missing Release of Resource after Effective Lifetime vulnerability in Apache CloudStack's scoped global configuration functionality. It affects different modules and plugins of the CloudStack management server, including Quota, Host-HA, etc., and may lead to eventual denial of service (DoS) scenario for the management server.
This issue affects Apache CloudStack: from 4.7.0 through 4.20.3.0 and from 4.21.0.0 through 4.22.1.0.
Users are recommended to upgrade to version 4.20.3.1 or 4.22.1.1 or later, which fixes the issue.
Affected Packages
https://github.com/apache/cloudstack.git (GITHUB):
Affected version(s) >=4.7.0 <4.20.3.1Fix Suggestion:
Update to version 4.20.3.1https://github.com/apache/cloudstack.git (GITHUB):
Affected version(s) >=4.21.0.0 <4.22.1.1Fix Suggestion:
Update to version 4.22.1.1Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.8
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
ACTIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
HIGH
CVSS v3
Base Score:
6.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Missing Release of Resource after Effective Lifetime
EPSS
Base Score:
0.33