diff --git a/src/transformers/commands/serving.py b/src/transformers/commands/serving.py
index 801901896d12..b6b5e04c2d59 100644
--- a/src/transformers/commands/serving.py
+++ b/src/transformers/commands/serving.py
@@ -629,6 +629,13 @@ def run(self):
                 allow_methods=["*"],
                 allow_headers=["*"],
             )
+            logger.warning_once(
+                "CORS allow origin is set to `*`. This is not recommended for production environments."
+            )
+        else:
+            logger.warning_once(
+                "Some apps may require CORS. Consider launching the server with `--enable-cors` if you see errors."
+            )
 
         @app.post("/v1/chat/completions")
         def chat_completion(request: dict):