Vulnerability Description
openEQUELLA before 2026.1.0 contains an authenticated stored server-side template injection vulnerability in FreemarkerPortletRenderer.renderHtml() that allows any authenticated non-guest user to achieve remote code execution by storing a malicious FreeMarker payload through a POST request to the RemotePortletService invoker endpoint. The markup field from stored portlet configuration is passed directly to custFactory.createResult() without a TemplateClassResolver restriction or FreeMarker sandboxing in BasicConfiguration, leaving built-ins such as ?new and freemarker.template.utility.Execute available, causing the payload to execute in the application server process context when any user renders a dashboard containing the affected portlet.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://blog.evan.lat/posts/openeq
- https://github.com/openequella/openEQUELLA/commit/d6e165afc986f8a3ed912cdb367d5a
- https://github.com/openequella/openEQUELLA/releases/tag/2026.1.0
- https://www.vulncheck.com/advisories/openequella-authenticated-stored-ssti-via-f
FAQ
What is CVE-2026-94109?
CVE-2026-94109 is a vulnerability with a CVSS score of 8.0 (HIGH). openEQUELLA before 2026.1.0 contains an authenticated stored server-side template injection vulnerability in FreemarkerPortletRenderer.renderHtml() that allows any authenticated non-guest user to achi...
How severe is CVE-2026-94109?
CVE-2026-94109 has been rated HIGH with a CVSS base score of 8.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-94109?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.