A path traversal issue exists in the `serveStatic()` function. In Node.js deployments, the `event.url.pathname` is not normalized, allowing percent-encoded dot segments (%2e%2e) to be passed to `decodeURI()` and decoded into `../` sequences without proper sanitization. This allows an unauthenticated remote attacker to send crafted requests to endpoints served by `serveStatic()` to read arbitrary files located outside the intended static directory.