diff --git a/fastapi/exceptions.py b/fastapi/exceptions.py
index 0620428be..a614874e8 100644
--- a/fastapi/exceptions.py
+++ b/fastapi/exceptions.py
@@ -162,6 +162,12 @@ class ValidationException(Exception):
         return self._errors
 
 
+class RequestMalformedError(ValidationException):
+    def __init__(self, errors: Sequence[Any], *, body: Any = None) -> None:
+        super().__init__(errors)
+        self.body = body
+
+
 class RequestValidationError(ValidationException):
     def __init__(self, errors: Sequence[Any], *, body: Any = None) -> None:
         super().__init__(errors)