CRITICAL SeverityCVSS 3.19.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2026-27960

Last updated May 05, 2026 · Published May 05, 2026

Description

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 products

1 listed

OpenCTI-Platform:opencti

Mappings

CWE

CWE-287

CAPEC

None listed.

Research

AuthenticationA threat-focused guide to authentication, covering attack paths, design pitfalls, and concrete defenses from…

Guides

JWT Security Best PracticesWhat to validate, rotate, and avoid in real systems.
OAuth 2.0 Security Best PracticesCommon pitfalls in PKCE, tokens, and redirect handling.

Training

Authentication PatternsOAuth 2.1, passkeys, WebAuthn, and JWTs - modern identity for modern apps.
Authorisation and Access ControlRBAC, ABAC, and privilege escalation patterns in real applications.

CVE-2026-27960

Description

Affected products

Mappings

Related