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.
{
"cna_assigner": "apache",
"cwe_ids": [
"CWE-918"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61422.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "4.20.3.0"
},
{
"last_affected": "4.20.3.0"
},
{
"introduced": "4.21.0.0"
},
{
"last_affected": "4.22.1.0"
}
],
"source": "AFFECTED_FIELD"
},
{
"extracted_events": [
{
"introduced": "4.21.0.0"
},
{
"fixed": "4.22.1.0"
}
],
"source": "DESCRIPTION"
}
]
}