CVE-2026-59654
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Apache Cloudstack
PublishedAug 21, 2026
First seenAug 21, 2026
Weakness typeCWE-772CWE-772
How to fix
Update
- apache cloudstack4.20.3.1, 4.22.1.1 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache cloudstack | 4.7.0 ≤ v < 4.20.3.1, 4.21.0.0 ≤ v < 4.22.1.1 | 4.20.3.1, 4.22.1.1 |
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