CVE-2026-94109

HIGHPre-NVD 8.08.8▲
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-20. The CNA's CVSS baseline 8.0; sources differ by 0.8.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 8.0Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

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 v3
8.0
EG Score
8.8HIGHhigh confidence
EG Risk
56
EG Risk 56/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.8%
EPSS %ILE
54th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 20, 2026

Last Modified

September 26, 2026

Advisory Details (7)

Auto-updated Sep 20, 2026
Patch available. Sources: github_commit, github_release.
generic

openEQUELLA before 2026.1.0 Remote Code Execution via FreeMarker Template Injection | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openequella-before-2026.1.0-remote-code-execution-via-freemarker-template-injection
generic

GitHub - openequella/openEQUELLA: Core openEQUELLA sources · GitHub

https://github.com/openequella/openEQUELLA
generic

openEQUELLA/Source/Plugins/Core/com.equella.core/src/com/tle/core/entity/service/impl/AbstractEntityServiceImpl.java at 8bd24b1dcf26cc3d74757e6b982fc1971a7d6767 · openequella/openEQUELLA · GitHub

https://github.com/openequella/openEQUELLA/blob/8bd24b1dcf26cc3d74757e6b982fc1971a7d6767/Source/Plugins/Core/com.equella.core/src/com/tle/core/entity/service/impl/AbstractEntityServiceImpl.java#L230-L250
generic

openEQUELLA/Source/Plugins/Core/com.equella.core/src/com/tle/web/portal/standard/renderer/FreemarkerPortletRenderer.java at 8bd24b1dcf26cc3d74757e6b982fc1971a7d6767 · openequella/openEQUELLA · GitHub

https://github.com/openequella/openEQUELLA/blob/8bd24b1dcf26cc3d74757e6b982fc1971a7d6767/Source/Plugins/Core/com.equella.core/src/com/tle/web/portal/standard/renderer/FreemarkerPortletRenderer.java#L141-L170
generic

openEQUELLA/Source/Plugins/Core/com.equella.core/src/com/tle/web/freemarker/BasicConfiguration.java at 8bd24b1dcf26cc3d74757e6b982fc1971a7d6767 · openequella/openEQUELLA · GitHub

https://github.com/openequella/openEQUELLA/blob/8bd24b1dcf26cc3d74757e6b982fc1971a7d6767/Source/Plugins/Core/com.equella.core/src/com/tle/web/freemarker/BasicConfiguration.java
github_release Patch Available

2026.1.0

Patch available: openequella/openEQUELLA 2026.1.0

https://github.com/openequella/openEQUELLA/releases/tag/2026.1.0
github_commit Patch Available

commit d6e165afc986 (openequella/openEQUELLA)

Patch available: openequella/openEQUELLA 2026.1.0 (contains commit d6e165afc986)

https://github.com/openequella/openEQUELLA/commit/d6e165afc986f8a3ed912cdb367d5ad8c1eeab5c

Vendor Advisories for CVE-2026-94109(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 28× in last 7d / 67× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-04 02:49 UTCEG score recompute
  2. 2026-10-04 02:49 UTCGHSA enrichment
  3. 2026-10-03 14:26 UTCEPSS rescore
  4. 2026-10-03 13:57 UTCGHSA enrichment
  5. 2026-10-03 01:04 UTCEG score recompute
  6. 2026-10-03 01:04 UTCGHSA enrichment
  7. 2026-10-02 17:57 UTCEPSS rescore
  8. 2026-10-02 12:12 UTCGHSA enrichment
  9. 2026-10-01 22:40 UTCEG score recompute
  10. 2026-10-01 22:40 UTCGHSA enrichment
  11. 2026-10-01 19:51 UTCEPSS rescore
  12. 2026-10-01 09:49 UTCGHSA enrichment
  13. 2026-09-30 20:58 UTCEG score recompute
  14. 2026-09-30 20:58 UTCGHSA enrichment
  15. 2026-09-30 15:04 UTCEPSS rescore
  16. 2026-09-30 08:07 UTCGHSA enrichment
  17. 2026-09-29 19:16 UTCEG score recompute
  18. 2026-09-29 19:15 UTCGHSA enrichment
  19. 2026-09-29 06:15 UTCEG score recompute
  20. 2026-09-29 06:15 UTCGHSA enrichment
  21. 2026-09-28 17:24 UTCEG score recompute
  22. 2026-09-28 17:24 UTCGHSA enrichment
  23. 2026-09-28 13:52 UTCEPSS rescore
  24. 2026-09-28 13:52 UTCEPSS rescore
  25. 2026-09-28 04:27 UTCGHSA enrichment
Show 42 more
  1. 2026-09-27 15:36 UTCEG score recompute
  2. 2026-09-27 15:36 UTCGHSA enrichment
  3. 2026-09-27 13:49 UTCEPSS rescore
  4. 2026-09-27 02:44 UTCEG score recompute
  5. 2026-09-27 02:44 UTCGHSA enrichment
  6. 2026-09-26 15:59 UTCEPSS rescore
  7. 2026-09-26 13:52 UTCEG score recompute
  8. 2026-09-26 13:52 UTCGHSA enrichment
  9. 2026-09-26 03:02 UTCEG score recompute
  10. 2026-09-26 03:02 UTCGHSA enrichment
  11. 2026-09-25 14:08 UTCGHSA enrichment
  12. 2026-09-25 01:11 UTCEG score recompute
  13. 2026-09-25 01:11 UTCGHSA enrichment
  14. 2026-09-24 14:04 UTCEPSS rescore
  15. 2026-09-24 12:19 UTCEG score recompute
  16. 2026-09-24 12:19 UTCGHSA enrichment
  17. 2026-09-24 12:03 UTCEG score recompute
  18. 2026-09-24 12:03 UTCGHSA enrichment
  19. 2026-09-24 03:28 UTCEG score recompute
  20. 2026-09-24 03:28 UTCGHSA enrichment
  21. 2026-09-23 17:54 UTCEPSS rescore
  22. 2026-09-23 14:37 UTCEG score recompute
  23. 2026-09-23 14:37 UTCGHSA enrichment
  24. 2026-09-23 13:26 UTCEG score recompute
  25. 2026-09-23 13:26 UTCGHSA enrichment
  26. 2026-09-23 10:25 UTCGHSA enrichment
  27. 2026-09-22 21:33 UTCEG score recompute
  28. 2026-09-22 21:33 UTCGHSA enrichment
  29. 2026-09-22 20:32 UTCMITRE cvelistV5CVSS v3 → 8 · CVSS v4 → 8.6
  30. 2026-09-22 20:32 UTCEG score recompute
  31. 2026-09-22 20:32 UTCGHSA enrichment
  32. 2026-09-22 16:01 UTCEPSS rescore
  33. 2026-09-22 15:50 UTCGHSA enrichment
  34. 2026-09-22 02:59 UTCEG score recompute
  35. 2026-09-22 02:59 UTCGHSA enrichment
  36. 2026-09-21 21:09 UTCEPSS rescore
  37. 2026-09-21 14:07 UTCGHSA enrichment
  38. 2026-09-21 01:16 UTCEG score recompute
  39. 2026-09-21 01:16 UTCGHSA enrichment
  40. 2026-09-20 12:22 UTCEG score recompute
  41. 2026-09-20 11:38 UTCEG score recompute
  42. 2026-09-20 11:36 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-94109?
CVE-2026-94109 is a high vulnerability published on September 20, 2026. 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…
When was CVE-2026-94109 disclosed?
CVE-2026-94109 was first published on September 20, 2026, with the most recent update on September 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-94109 actively exploited?
CVE-2026-94109 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (54th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-94109?
CVE-2026-94109 has a CVSS base score of 8.0 (the CNA's own assessment, by vulncheck; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.8 (HIGH).
How do I remediate CVE-2026-94109?
A fix for CVE-2026-94109 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-94109 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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