OpenObserve Improper Authorization Allows Admin User to Remove Root User

OpenObserve is a cloud-native observability platform. A vulnerability in the user management endpoint /api/{org_id}/users/{email_id} allows an "Admin" role user to remove a "Root" user from the organization. This violates the intended privilege hierarchy, enabling a non-root user to remove the highest-privileged account. Due to insufficient role checks, the remove_user_from_org function does not prevent an "Admin" user from removing a "Root" user. As a result, an attacker with an "Admin" role can remove critical "Root" users, potentially gaining effective full control by eliminating the highest-privileged accounts. The DELETE /api/{org_id}/users/{email_id} endpoint is affected. This issue has been addressed in release version 0.14.1 and all users are advised to upgrade. There are no known workarounds for this vulnerability.