CVE-2026-61422Apache CloudStack: Authenticated pre-validation SSRF in registerTemplate
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.
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| Apache Software Foundation | Apache CloudStack | 4.20.3.0, 4.21.0.0 – ≤ 4.22.1.0 | |
| apache | cloudstack | 4.21.0.0 – < 4.22.1.1 |
References and patches
- https://lists.apache.org/thread/g6cwddtjrwbh1d56wjz4cfp3fzfm4kbc vendor-advisoryMailing ListVendor Advisory
CPE matches (NVD) (2)
cpe:2.3:a:apache:cloudstack:*:*:*:*:*:*:*:*≥ 4.21.0.0 < 4.22.1.1cpe:2.3:a:apache:cloudstack:4.20.3.0:*:*:*:*:*:*:*