CVE-2026-27960 — OpenCTI privilege escalation and unauthenticated access via default admin account

CVE-2026-27960

OpenCTI privilege escalation and unauthenticated access via default admin account PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
OpenCTI-Platform / opencti	affected >= 6.6.0, < 6.9.13

CWE

CWE-287

References

https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-6vvv-vmfr-xhrx

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.