Missing Resource Release Vulnerability in Apache CloudStack Management Server
CVE-2026-59654

6.8MEDIUM

Key Information:

Vendor

Apache
Status
Apache Cloudstack
Vendor
CVE Published:
21 August 2026

What is CVE-2026-59654?

This vulnerability in Apache CloudStack's management server arises from a missing release of resources after their effective lifetime within various modules and plugins, such as Quota and Host-HA. If exploited, it may result in a denial of service (DoS) scenario, impacting server functionality and availability. It is crucial for users running versions 4.7.0 to 4.20.3.0 and 4.21.0.0 to 4.22.1.0 to upgrade to versions 4.20.3.1 or 4.22.1.1 to mitigate this issue.

Affected Version(s)

Apache CloudStack 4.7.0 <= 4.20.3.0

Apache CloudStack 4.21.0.0 <= 4.22.1.0

References

https://lists.apache.org/thread/7cgf37clcpjj4g2hl7rnyoq1t...
vendor-advisory

CVSS V4

Score:
6.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Henrique Sato <henriquesato2003@gmail.com>
.