Break if missing host header

src/HttpParser.h

@@ -300,6 +300,11 @@ private:
                 req->bf.add(h->key);
             }
             
+            /* Break if no host header */
+            if (!req->getHeader("host").length()) {
+                return {0, FULLPTR};
+            }
+
             /* RFC 9112 6.3
             * If a message is received with both a Transfer-Encoding and a Content-Length header field,
             * the Transfer-Encoding overrides the Content-Length. Such a message might indicate an attempt