CVE-2026-39980: PYSEC-2026-2265 - OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables…
CVE-2026-39980 · Severity: low · CVSS 3.1 · Published 2026-04-09
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.
No. Junglewise Threat Intelligence has no report of CVE-2026-39980 being exploited in the wild.
How severe is CVE-2026-39980?
Low severity, with a CVSS score of 3.1, published 9 April 2026.
Which products and versions are affected?
pycti (PyPI) ECOSYSTEM:introduced=0,fixed=6.9.5.
Is there a fix for CVE-2026-39980?
Yes. pycti (PyPI): upgrade to 6.9.5 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-39980?
Check whether you run pycti (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.