diff --git a/docs_src/query_params_str_validations/tutorial012_an_py310.py b/docs_src/query_params_str_validations/tutorial012_an_py310.py
index 9b5a9c2fb2..fb3b1e63ab 100644
--- a/docs_src/query_params_str_validations/tutorial012_an_py310.py
+++ b/docs_src/query_params_str_validations/tutorial012_an_py310.py
@@ -6,6 +6,8 @@ app = FastAPI()
 
 
 @app.get("/items/")
-async def read_items(q: Annotated[list[str], Query()] = ["foo", "bar"]):
+async def read_items(q: Annotated[list[str], Query()] = None):
+    if q is None:
+        q = []
     query_items = {"q": q}
     return query_items
diff --git a/docs_src/query_params_str_validations/tutorial013_an_py310.py b/docs_src/query_params_str_validations/tutorial013_an_py310.py
index 602734145d..26e3f1c8a5 100644
--- a/docs_src/query_params_str_validations/tutorial013_an_py310.py
+++ b/docs_src/query_params_str_validations/tutorial013_an_py310.py
@@ -6,6 +6,8 @@ app = FastAPI()
 
 
 @app.get("/items/")
-async def read_items(q: Annotated[list, Query()] = []):
+async def read_items(q: Annotated[list, Query()] = None):
+    if q is None:
+        q = []
     query_items = {"q": q}
     return query_items
diff --git a/fastapi/_compat/v2.py b/fastapi/_compat/v2.py
index 79fba93188..8f148fc492 100644
--- a/fastapi/_compat/v2.py
+++ b/fastapi/_compat/v2.py
@@ -160,10 +160,12 @@ class ModelField:
     def validate(
         self,
         value: Any,
-        values: dict[str, Any] = {},  # noqa: B006
+        values: dict[str, Any] = None,  # noqa: B006
         *,
         loc: tuple[int | str, ...] = (),
     ) -> tuple[Any, list[dict[str, Any]]]:
+        if values is None:
+            values = {}
         try:
             return (
                 self._type_adapter.validate_python(value, from_attributes=True),
diff --git a/scripts/playwright/cookie_param_models/image01.py b/scripts/playwright/cookie_param_models/image01.py
index 77c91bfe22..33231fd8f7 100644
--- a/scripts/playwright/cookie_param_models/image01.py
+++ b/scripts/playwright/cookie_param_models/image01.py
@@ -29,7 +29,7 @@ process = subprocess.Popen(
 try:
     for _ in range(3):
         try:
-            response = httpx.get("http://localhost:8000/docs")
+            response = httpx.get("http://localhost:8000/docs", timeout=10.0)
         except httpx.ConnectError:
             time.sleep(1)
             break
diff --git a/scripts/playwright/header_param_models/image01.py b/scripts/playwright/header_param_models/image01.py
index 53914251ed..f281ec260e 100644
--- a/scripts/playwright/header_param_models/image01.py
+++ b/scripts/playwright/header_param_models/image01.py
@@ -28,7 +28,7 @@ process = subprocess.Popen(
 try:
     for _ in range(3):
         try:
-            response = httpx.get("http://localhost:8000/docs")
+            response = httpx.get("http://localhost:8000/docs", timeout=10.0)
         except httpx.ConnectError:
             time.sleep(1)
             break
diff --git a/scripts/playwright/json_base64_bytes/image01.py b/scripts/playwright/json_base64_bytes/image01.py
index 56c57e1c32..45a0220467 100644
--- a/scripts/playwright/json_base64_bytes/image01.py
+++ b/scripts/playwright/json_base64_bytes/image01.py
@@ -27,7 +27,7 @@ process = subprocess.Popen(
 try:
     for _ in range(3):
         try:
-            response = httpx.get("http://localhost:8000/docs")
+            response = httpx.get("http://localhost:8000/docs", timeout=10.0)
         except httpx.ConnectError:
             time.sleep(1)
             break
diff --git a/scripts/playwright/query_param_models/image01.py b/scripts/playwright/query_param_models/image01.py
index 0ea1d0df4e..dbb6f6b58e 100644
--- a/scripts/playwright/query_param_models/image01.py
+++ b/scripts/playwright/query_param_models/image01.py
@@ -31,7 +31,7 @@ process = subprocess.Popen(
 try:
     for _ in range(3):
         try:
-            response = httpx.get("http://localhost:8000/docs")
+            response = httpx.get("http://localhost:8000/docs", timeout=10.0)
         except httpx.ConnectError:
             time.sleep(1)
             break
diff --git a/scripts/playwright/request_form_models/image01.py b/scripts/playwright/request_form_models/image01.py
index fe4da32fcb..60261bae41 100644
--- a/scripts/playwright/request_form_models/image01.py
+++ b/scripts/playwright/request_form_models/image01.py
@@ -28,7 +28,7 @@ process = subprocess.Popen(
 try:
     for _ in range(3):
         try:
-            response = httpx.get("http://localhost:8000/docs")
+            response = httpx.get("http://localhost:8000/docs", timeout=10.0)
         except httpx.ConnectError:
             time.sleep(1)
             break
diff --git a/scripts/playwright/sql_databases/image01.py b/scripts/playwright/sql_databases/image01.py
index 0dd6f25145..c55839206b 100644
--- a/scripts/playwright/sql_databases/image01.py
+++ b/scripts/playwright/sql_databases/image01.py
@@ -27,7 +27,7 @@ process = subprocess.Popen(
 try:
     for _ in range(3):
         try:
-            response = httpx.get("http://localhost:8000/docs")
+            response = httpx.get("http://localhost:8000/docs", timeout=10.0)
         except httpx.ConnectError:
             time.sleep(1)
             break
diff --git a/scripts/playwright/sql_databases/image02.py b/scripts/playwright/sql_databases/image02.py
index 6c4f685e86..2009989726 100644
--- a/scripts/playwright/sql_databases/image02.py
+++ b/scripts/playwright/sql_databases/image02.py
@@ -27,7 +27,7 @@ process = subprocess.Popen(
 try:
     for _ in range(3):
         try:
-            response = httpx.get("http://localhost:8000/docs")
+            response = httpx.get("http://localhost:8000/docs", timeout=10.0)
         except httpx.ConnectError:
             time.sleep(1)
             break