XAgent contains a path traversal vulnerability in the workspace file endpoint that allows self-registered or default-credential users to read arbitrary files on the host by supplying parent-directory segments in the "file_name" form field with no path containment check. Attackers can register an account without email verification, then submit crafted "file_name" values such as parent-directory traversal sequences to the "/workspace/file" handler to read host files including application secrets, database credentials, and system files outside the Docker sandbox.