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CVE-2026-94109— openEQUELLA < 2026.1.0 Authenticated Stored SSTI via FreemarkerPortletRenderer

Quick assessment

Affected
openequella openEQUELLA
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

openEQUELLA 2026.1.0 之前的版本存在一个远程代码执行漏洞，原因是 FreeMarker 模板编译过程中使用了未经沙箱隔离的 配置。经过身份验证的攻击者可以通过在集合摘要、仪表板小部件或 MIME 模板中注入恶意的模板表达式，实例化诸如 等危险类，并调用 来执行任意命令。

CVSS 8.0 · High EPSS 0.78% · P56

Affected Version Matrix 2

VendorProduct Version RangeStatus
openequella openEQUELLA < 2026.1.0 affected
2026.1.0 unaffected
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I. Basic Information for CVE-2026-94109

Vulnerability Information
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Vulnerability Title
openEQUELLA < 2026.1.0 Authenticated Stored SSTI via FreemarkerPortletRenderer
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1336
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
openequella openEQUELLA 0 ~ 2026.1.0 -

II. Public POCs for CVE-2026-94109

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III. Intelligence Information for CVE-2026-94109

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Patches & Fixes for CVE-2026-94109 (1)

Vendor Advisories for CVE-2026-94109 (2)

Security Blog Posts for CVE-2026-94109 (1)

Vendor Pages for CVE-2026-94109 (1)

Other References for CVE-2026-94109 (3)

IV. Related Vulnerabilities

Same product: openEQUELLA
Same weakness: CWE-1336