When registering a template or ISO, CloudStack makes a live HTTP HEAD/GET call to determine file size for secondary storage usage-limit checks, and this happens before URL validation is performed. However, this does not pose a malicious template or ISO registration risk, as URL validation still occurs prior to the actual download by the Secondary Storage VM.This issue affects Apache CloudStack: in 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.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Fri, 21 Aug 2026 10:00:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Apache
Apache cloudstack |
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| Vendors & Products |
Apache
Apache cloudstack |
Fri, 21 Aug 2026 08:45:00 +0000
| Type | Values Removed | Values Added |
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| Description | Authenticated pre-validation SSRF vulnerability in Apache CloudStack's template and ISO registration functionality. When registering a template or ISO, CloudStack makes a live HTTP HEAD/GET call to determine file size for secondary storage usage-limit checks, and this happens before URL validation is performed. However, this does not pose a malicious template or ISO registration risk, as URL validation still occurs prior to the actual download by the Secondary Storage VM.This issue affects Apache CloudStack: in 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. | |
| Title | Apache CloudStack: Authenticated pre-validation SSRF in registerTemplate | |
| Weaknesses | CWE-918 | |
| References |
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Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-08-21T08:24:38.323Z
Reserved: 2026-07-09T11:34:27.649Z
Link: CVE-2026-61422
No data.
Status : Received
Published: 2026-08-21T09:16:39.840
Modified: 2026-08-21T09:16:39.840
Link: CVE-2026-61422
No data.
OpenCVE Enrichment
Updated: 2026-08-21T10:15:13Z