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TI-2026-63325 Aliases CVE-2026-94109GHSA-w599-5qgp-f3cf

openEQUELLA < 2026.1.0 Authenticated Stored SSTI via FreemarkerPortletRenderer

Priority HIGH 72CWE-1336Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-1336.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00778 56th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed openEQUELLA (openequella): 2026.1.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
openequellaopenEQUELLAbefore 2026.1.02026.1.0Patch availableCNA
  • openEQUELLA Vendoropenequella Affected before 2026.1.0 Fixed in 2026.1.0 Patch available CNA

Remediation

  • Fix · CNA openEQUELLA (openequella) Fixed in 2026.1.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-94109
  2. 2026-10-03 Alias added: GHSA-w599-5qgp-f3cf
  3. 2026-10-29 1 new reference · CNA

References

Exploit 1

Patch 1

Advisory 1

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences