Windmill < 1.603.3 - Operator Authorization Bypass
Windmill versions 1.276.0 through 1.603.2 contain an authorization bypass vulnerability in the folder management API endpoints. The endpoints for creating, deleting, and managing folder ownership do not enforce role-based access control for operator-level users. In Windmill, operators are restricted users intended to only execute existing scripts, but due to missing server-side authorization checks, operators can create folders, manage folder permissions, and access owner management endpoints. This bypass serves as the prerequisite for exploiting CVE-2026-23696 (SQL injection via folder addowner) enabling full privilege escalation from operator to super admin with remote code execution.