Vulnerability record · CVE-2026-59654 · published 21 August 2026

CVE-2026-59654: Apache cloudstack vulnerability

Apache · Cloudstack

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.

6.8 CVSS 4.0 Medium EPSS 0.59% · top 53.9% CWE-772 · CWE-772

6.8CVSS 4.0 base score

0.59%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

1References

27 Aug 2026Last modified by NVD

Description

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Cloudstack Apache

References

Link	Tags
https://lists.apache.org/thread/7cgf37clcpjj4g2hl7rnyoq1th3ht9r4	Vendor Advisory

Track CVE-2026-59654 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2012-4501Apache cloudstack permissions and access controls vulnerabilityCitrix Cloud.com CloudStack, and Apache CloudStack pre-release, allows remote attackers to make arbitrary API calls by leveraging the system user acc…EPSS 7.8%26 Oct 2012 9.9CVE-2024-50386Apache cloudstack improper input validation vulnerabilityAccount users in Apache CloudStack by default are allowed to register templates to be downloaded directly to the primary storage for deploying instan…EPSS 1.5%12 Nov 2024 9.8CVE-2024-39864Apache cloudstack code injection vulnerabilityThe CloudStack integration API service allows running its unauthenticated API server (usually on port 8096 when configured and enabled via integratio…EPSS 1.8%5 Jul 2024 9.8CVE-2024-38346Apache cloudstack code injection vulnerabilityThe CloudStack cluster service runs on unauthenticated port (default 9090) that can be misused to run arbitrary commands on targeted hypervisors and …EPSS 3.3%5 Jul 2024 9.8CVE-2024-29006Apache cloudstack authentication bypass by spoofing vulnerabilityBy default the CloudStack management server honours the x-forwarded-for HTTP header and logs it as the source IP of an API request. This could lead t…EPSS 0.87%4 Apr 2024 9.8CVE-2022-35741Apache cloudstack xml external entity (xxe) vulnerabilityApache CloudStack version 4.5.0 and later has a SAML 2.0 authentication Service Provider plugin which is found to be vulnerable to XML external entit…EPSS 8.1%18 Jul 2022 9.8CVE-2019-17562Apache cloudstack memory buffer overflow vulnerabilityA buffer overflow vulnerability has been found in the baremetal component of Apache CloudStack. This applies to all versions prior to 4.13.1. The vul…EPSS 2.9%14 May 2020 9.8CVE-2016-6813Apache cloudstack vulnerabilityApache CloudStack 4.1 to 4.8.1.0 and 4.9.0.0 contain an API call designed to allow a user to register for the developer API. If a malicious user is a…EPSS 5.6%6 Feb 2018

Source: NIST National Vulnerability Database (record CVE-2026-59654), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.