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CVE-2026-61422

4.3 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 4.3 · apacheNVD modified 2026-10-16 15:10

Affected (CPE criteria) 2

  • cpe:2.3:a:apache:cloudstack:*:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:cloudstack:4.20.3.0:*:*:*:*:*:*:*

References 1