CRITICAL SeverityCVSS 3.19.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVE-2026-39980

Last updated Apr 09, 2026 · Published Apr 09, 2026

Description

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 products

1 listed

OpenCTI-Platform:opencti

Mappings

CWE

CWE-1336

CAPEC

None listed.