diff --git a/manim/utils/docbuild/manim_directive.py b/manim/utils/docbuild/manim_directive.py
index b94b7386c9..666672cc2f 100644
--- a/manim/utils/docbuild/manim_directive.py
+++ b/manim/utils/docbuild/manim_directive.py
@@ -1,3 +1,54 @@
+import logging
+
+
+def secure_exec(code_to_run, user_globals=None):
+    """
+    Secure alternative to exec() with input validation and restricted execution.
+    """
+    if not isinstance(code_to_run, str):
+        raise TypeError("Code must be a string")
+
+    if user_globals is None:
+        user_globals = {}
+
+    # Create a restricted globals dictionary
+    restricted_globals = {
+        "__builtins__": {
+            "len": len,
+            "str": str,
+            "int": int,
+            "float": float,
+            "bool": bool,
+            "list": list,
+            "dict": dict,
+            "tuple": tuple,
+            "set": set,
+            "range": range,
+            "enumerate": enumerate,
+            "zip": zip,
+            "print": print,
+        }
+    }
+
+    # Merge with user globals, but don't allow overriding restricted builtins
+    safe_globals = {**restricted_globals, **user_globals}
+    safe_globals["__builtins__"] = restricted_globals["__builtins__"]
+
+    try:
+        # Compile the code first to validate syntax
+        compiled_code = compile(code_to_run, "<string>", "exec")
+
+        # Execute with restricted globals
+        exec(compiled_code, safe_globals)
+
+    except SyntaxError as e:
+        logging.error(f"Syntax error in code execution: {e}")
+        raise
+    except Exception as e:
+        logging.error(f"Error during code execution: {e}")
+        raise
+
+
 r"""
 A directive for including Manim videos in a Sphinx document
 ===========================================================
@@ -304,7 +355,9 @@ def run(self) -> list[nodes.Element]:
 
         try:
             with tempconfig(example_config):
-                run_time = timeit(lambda: exec("\n".join(code), globals()), number=1)
+                run_time = timeit(
+                    lambda: secure_exec("\n".join(code), globals()), number=1
+                )
                 video_dir = config.get_dir("video_dir")
                 images_dir = config.get_dir("images_dir")
         except Exception as e: