8.8High
CVE-2026-94109
openEQUELLA versions before 2026.1.0 contain a remote code execution vulnerability in FreeMarker template compilation due to an unsandboxed TemplateClassResolver configuration. Authenticated attackers can inject malicious template expressions through collection summaries, dashboard portlets, or MIME templates to instantiate dangerous classes like freemarker.template.utility.Execute and invoke Runtime.exec for arbitrary command execution.
What this means for your business
- An attacker can use it remotely, over a network, with an ordinary user login, and without anyone at your company clicking anything.
What to do
- 1Ask your IT team or provider whether any of your systems use the affected product.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
Not sure if your company is exposed?
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Scoring
- CVSS
- 8.8 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- CVSS v4
- 8.7
- Weakness
- CWE-1336
- Assigned by
- disclosure@vulncheck.com
Dates
- Published
- 2026-09-20
- Last modified
- 2026-09-20
- Sources
- NVD
References
- https://github.com/openequella/openEQUELLA
- https://github.com/openequella/openEQUELLA/blob/8bd24b1dcf26cc3d74757e6b982fc1971a7d6767/Source/Plugins/Core/com.equella.core/src/com/tle/core/entity/service/impl/AbstractEntityServiceImpl.java#L230-L250
- https://github.com/openequella/openEQUELLA/blob/8bd24b1dcf26cc3d74757e6b982fc1971a7d6767/Source/Plugins/Core/com.equella.core/src/com/tle/web/freemarker/BasicConfiguration.java
- https://github.com/openequella/openEQUELLA/blob/8bd24b1dcf26cc3d74757e6b982fc1971a7d6767/Source/Plugins/Core/com.equella.core/src/com/tle/web/portal/standard/renderer/FreemarkerPortletRenderer.java#L141-L170
- https://github.com/openequella/openEQUELLA/commit/d6e165afc986f8a3ed912cdb367d5ad8c1eeab5c
- https://github.com/openequella/openEQUELLA/releases/tag/2026.1.0
- https://www.vulncheck.com/advisories/openequella-before-2026.1.0-remote-code-execution-via-freemarker-template-injection