CVE-2026-94109

HIGH 8.8

openEQUELLA before 2026.1.0 Remote Code Execution via FreeMarker Template Injection

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-1336
Vendor	openequella
Product	openequella
Published	Sep 20, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

openequella / openEQUELLA

0 < 2026.1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/openequella/openEQUELLA/commit/d6e165afc986f8a3ed912cdb367d5ad8c1eeab5c github.com: https://github.com/openequella/openEQUELLA/releases/tag/2026.1.0 github.com: https://github.com/openequella/openEQUELLA/blob/8bd24b1dcf26cc3d74757e6b982fc1971a7d6767/Source/Plugins/Core/com.equella.core/src/com/tle/web/freemarker/BasicConfiguration.java github.com: https://github.com/openequella/openEQUELLA/blob/8bd24b1dcf26cc3d74757e6b982fc1971a7d6767/Source/Plugins/Core/com.equella.core/src/com/tle/web/portal/standard/renderer/FreemarkerPortletRenderer.java#L141-L170 github.com: https://github.com/openequella/openEQUELLA/blob/8bd24b1dcf26cc3d74757e6b982fc1971a7d6767/Source/Plugins/Core/com.equella.core/src/com/tle/core/entity/service/impl/AbstractEntityServiceImpl.java#L230-L250 github.com: https://github.com/openequella/openEQUELLA vulncheck.com: https://www.vulncheck.com/advisories/openequella-before-2026.1.0-remote-code-execution-via-freemarker-template-injection

Credits

🔍 evan