CVE-2026-39980: OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.9.5, the safeEjs.ts file does not properly…

PriorityP346high7.2CVSS 3.1

AVNACLPRHUINSUCHIHAH

EPSS

0.52%

40.3th percentile

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.9.5, the safeEjs.ts file does not properly sanitize EJS templates. Users with the Manage customization capability can run arbitrary JavaScript in the context of the OpenCTI platform process during notifier template execution. This vulnerability is fixed in 6.9.5.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
citeum	opencti	< 6.9.5	6.9.5
opencti-platform	opencti	< 6.9.5	6.9.5

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