VDB
CVE-2026-61422
CVE-2026-61422
PUBLISHED
CVSS 4.3 MEDIUM
Reported by apache · Published August 21, 2026
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.
Risk Scores
CVSS 3.1
4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache CloudStack | 4.20.3.0, 4.21.0.0 |
| Apache Software Foundation | Apache CloudStack | 4.20.3.0, 4.21.0.0, 4.20.3.0 |
Timeline
- Aug 21, 2026 EPSS Score
- Aug 21, 2026 CVE Published
- Aug 22, 2026 Coalition ESS Score
- Aug 24, 2026 EPSS Score
- Aug 25, 2026 EPSS Score
- Aug 27, 2026 CVE Updated
- Aug 28, 2026 EPSS Score