CVE-2026-61422: CWE-918 Server-Side Request Forgery (SSRF) in Apache Software Foundation Apache CloudStack
Description
CVE-2026-61422 is an authenticated server-side request forgery (SSRF) vulnerability in Apache CloudStack affecting template and ISO registration. The vulnerability occurs because CloudStack makes a live HTTP HEAD/GET request to determine file size before validating the URL. However, URL validation is still performed before the actual download, reducing the risk of malicious template or ISO registration. The issue affects versions 4.20.3.0 and from 4.21.0.0 through 4.22.1.0. Upgrading to versions 4.20.3.1 or 4.22.1.1 or later resolves the vulnerability.
CVSS v3.1
Score 4.3medium
Affected software
Apache Software Foundation
Apache CloudStack
pkg:maven/org.apache/cloudstackRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-61422 is an authenticated SSRF vulnerability in Apache CloudStack's template and ISO registration functionality. During registration, CloudStack issues a live HTTP HEAD/GET request to determine the file size for secondary storage usage-limit checks before performing URL validation. This pre-validation request could be abused to cause SSRF. However, since URL validation still occurs before the actual download by the Secondary Storage VM, the risk of malicious template or ISO registration is mitigated. The vulnerability affects Apache CloudStack versions 4.20.3.0 and all versions from 4.21.0.0 up to and including 4.22.1.0. The vendor has released fixed versions 4.20.3.1 and 4.22.1.1 to address this issue.
Potential Impact
The vulnerability allows an authenticated user to perform SSRF via the template and ISO registration process. The impact is limited to information disclosure (confidentiality impact) as per the CVSS score, with no integrity or availability impact. Because URL validation occurs before the actual download, the risk of registering malicious templates or ISOs is mitigated. The CVSS score is 4.3 (medium severity), reflecting a low confidentiality impact with no integrity or availability impact.
Mitigation Recommendations
Users should upgrade Apache CloudStack to version 4.20.3.1 or 4.22.1.1 or later, where this vulnerability is fixed. No other mitigation is required as the vendor has provided an official fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-07-09T11:34:27.649Z
- State
- PUBLISHED
Threat ID: 6a88309facd9273b4907b8a5
Added to database: 08/21/2026, 11:03:59 UTC
Last enriched: 09/11/2026, 03:03:55 UTC
Last updated: 10/06/2026, 18:48:23 UTC
Views: 92
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