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.
Metrics
Affected Vendors & Products
References
History
Thu, 27 Aug 2026 14:45:00 +0000
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| CPEs | cpe:2.3:a:apache:cloudstack:*:*:*:*:*:*:*:* cpe:2.3:a:apache:cloudstack:4.20.3.0:*:*:*:*:*:*:* |
Mon, 24 Aug 2026 18:30:00 +0000
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| Metrics |
ssvc
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Mon, 24 Aug 2026 17:30:00 +0000
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cvssV3_1
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Fri, 21 Aug 2026 10:00:00 +0000
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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
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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: 2026-08-21T08:24:38.323Z
Updated: 2026-08-24T17:03:52.112Z
Reserved: 2026-07-09T11:34:27.649Z
Link: CVE-2026-61422
Updated: 2026-08-24T17:03:44.314Z
Status : Analyzed
Published: 2026-08-21T09:16:39.840
Modified: 2026-08-27T14:37:55.040
Link: CVE-2026-61422
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