← Vulnerability feed

Vulnerability record · CVE-2026-61422 · published 21 August 2026

CVE-2026-61422: Apache cloudstack server-side request forgery (ssrf) vulnerability

Apache · Cloudstack

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.

4.3 CVSS 3.1 Medium EPSS 0.42% · top 66.7% CWE-918 · Server-side request forgery (SSRF)
4.3CVSS 3.1 base score
0.42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
27 Aug 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/g6cwddtjrwbh1d56wjz4cfp3fzfm4kbc Mailing ListVendor Advisory

Track CVE-2026-61422 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2012-4501Apache cloudstack permissions and access controls vulnerabilityCitrix Cloud.com CloudStack, and Apache CloudStack pre-release, allows remote attackers to make arbitrary API calls by leveraging the system user acc…EPSS 7.8%9.9CVE-2024-50386Apache cloudstack improper input validation vulnerabilityAccount users in Apache CloudStack by default are allowed to register templates to be downloaded directly to the primary storage for deploying instan…EPSS 1.5%9.8CVE-2024-39864Apache cloudstack code injection vulnerabilityThe CloudStack integration API service allows running its unauthenticated API server (usually on port 8096 when configured and enabled via integratio…EPSS 1.8%9.8CVE-2024-38346Apache cloudstack code injection vulnerabilityThe CloudStack cluster service runs on unauthenticated port (default 9090) that can be misused to run arbitrary commands on targeted hypervisors and …EPSS 3.3%9.8CVE-2024-29006Apache cloudstack authentication bypass by spoofing vulnerabilityBy default the CloudStack management server honours the x-forwarded-for HTTP header and logs it as the source IP of an API request. This could lead t…EPSS 0.87%9.8CVE-2022-35741Apache cloudstack xml external entity (xxe) vulnerabilityApache CloudStack version 4.5.0 and later has a SAML 2.0 authentication Service Provider plugin which is found to be vulnerable to XML external entit…EPSS 8.1%9.8CVE-2019-17562Apache cloudstack memory buffer overflow vulnerabilityA buffer overflow vulnerability has been found in the baremetal component of Apache CloudStack. This applies to all versions prior to 4.13.1. The vul…EPSS 2.9%9.8CVE-2016-6813Apache cloudstack vulnerabilityApache CloudStack 4.1 to 4.8.1.0 and 4.9.0.0 contain an API call designed to allow a user to register for the developer API. If a malicious user is a…EPSS 5.6%

Source: NIST National Vulnerability Database (record CVE-2026-61422), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.