Uncaught Exception in Servlet

When an unhandled exception occurs in a Servlet, the application server's default error page often returns detailed debugging information directly to the user's browser. This data is extremely valuable to attackers, as it can reveal internal system details like database queries, software versions, and file paths—effectively providing a roadmap for further exploitation. To prevent this, developers must implement comprehensive exception handling that catches all Throwable objects and returns generic, user-friendly error messages. This practice ensures that sensitive technical details remain on the server side in logs, while end-users receive only the information they need, significantly reducing the application's attack surface.