Critical

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. In versions 6.6.0 through 6.9.12, there is a privilege escalation vulnerability that can be exploit

  • Disclosed: 05.05.2026
  • Updated: 11.10.2026 12:19

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. In versions 6.6.0 through 6.9.12, there is a privilege escalation vulnerability that can be exploited by unauthenticated attackers to query the API as any existing user, including the default admin account. This issue has been fixed in version 6.9.13. As a workaround, the default admin can be disabled using the APP__ADMIN__EXTERNALLY_MANAGED configuration.

Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) pycti >= 6.9.0, < 6.9.13 6.9.13

References

CVSS score 9.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
-
Platform
Python (PyPI)
Package
pycti
Disclosed
05.05.2026
Updated
11.10.2026 12:19

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2026-119 - PyPA Advisory Database; CC BY 4.0

Vulnerability history: pycti

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (22) in the archive
Total entries
22
First → latest
07.2022 07.2026
Without a fix
2
Exploited in attacks
0

Severity breakdown

  • Critical 3
  • High 9
  • Medium 10

Disclosures per year

  1. 2022: 2
  2. 2023: 0
  3. 2024: 4
  4. 2025: 4
  5. 2026: 12
Severity:
  1. OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. In versions 6.6.0 through 6.9.12, there is a privilege escalation vulnerability that can be exploit this entry
    Critical · 9.8 CVE-2026-27960 >= 6.9.0, < 6.9.13 6.9.13

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