Django LiveView WebSocket Auth Bypass Fix (WS4Django)

Vulnerability Overview This vulnerability involves a WebSocket connection closure issue in the Django framework during redirection mounts in . Specifically, when a user attempts to access an authenticated page, if the WebSocket connection is not properly closed during the redirection process, it may lead to unauthorized access or information disclosure. Impact Scope Affected Versions: This vulnerability affects Django's WebSocket-related functionalities, particularly those associated with mount redirection. Potential Risks: Unauthorized users can exploit this vulnerability to transmit unauthenticated events, potentially leading to the leakage of sensitive information or unauthorized system access. Remediation Plan 1. Code Modifications: - Ensure WebSocket connections are properly closed during mount redirections. - Modify the method to ensure WebSocket connections are closed during redirection. 2. Testing and Verification: - Add test cases to verify that WebSocket connections are correctly closed during redirection. - Ensure that the patched code does not introduce new security issues. POC Code Below is the patched code snippet: `` login_required handle_mount {"type":"navigate"} login_required on_mount "not" PermissionDenied view_instance handle_event "raw" {"type":"event"} @event_handler handle_live_redirect_mount handle_mount close(code=4403) view_instance PermissionDenied on_mount() docs/audits/websocket-auth-2026-06.md handle_mount_batch close(4403) TextSocketMapBatchSplitter self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount self._mounting_in_batch handle_mount _mount

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Django LiveView WebSocket Auth Bypass Fix (WS4Django)

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