Affected: WSO2 API Control Plane, WSO2 Universal Gateway, WSO2 API Manager, WSO2 Traffic Manager, WSO2 Identity Server as Key Manager, WSO2 Open Banking IAM, WSO2 Open Banking AM, WSO2 Identity Server, WSO2 Carbon OAuth

Tokens associated with user sessions are not revoked when the corresponding user session is terminated, unless another SSO request is initiated. This occurs when the session-bound token feature is enabled with token binding validation and the "Revoke token upon user logout" option is not active. The software fails to automatically invalidate session-bound tokens upon user session termination.

This vulnerability exists when token binding validation is enabled. As a result, a malicious actor possessing a valid session-bound token could exploit this condition to maintain unauthorized access to applications and resources even after the associated user session has ended, potentially leading to the exposure of sensitive user data.