CVE-2026-61422

published 2026-08-21

CVE-2026-61422: Authenticated pre-validation SSRF vulnerability in Apache CloudStack's template and ISO registration functionality. When registering a template or ISO…

Priority P4 24 medium 4.3 CVSS 3.1

AV N AC L PR L UI N S U C L I N A N

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.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
apache	cloudstack	—	—
apache	cloudstack	>= 4.21.0.0 < 4.22.1.1	4.22.1.1
apache_software_foundation	apache_cloudstack	—	—
apache_software_foundation	apache_cloudstack	4.21.0.0 – 4.22.1.0	—

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