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Medium 4.3Published Aug 21, 2026

CVE-2026-61422Apache CloudStack: Authenticated pre-validation SSRF in registerTemplate

Updated under an hour ago ()

Does this affect you?

It affects Apache Software Foundation Apache CloudStack and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
4.3 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE)
CWE-918
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
apache
NVD analysis
Analyzed
Record last updated
Aug 24, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Apache Software Foundation Apache CloudStack
apache_software_foundation:apache_cloudstack (from the name)
4.20.3.0; from 4.21.0.0 through 4.22.1.0
CNA record
apache cloudstack
apache:cloudstack
from 4.21.0.0 before 4.22.1.1; 4.20.3.0
NVD

References

  • vendor-advisory, mailing-list

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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