diff --git a/src/HotChocolate/Adapters/src/Adapters.OpenApi.Core/Execution/DynamicEndpointMiddleware.cs b/src/HotChocolate/Adapters/src/Adapters.OpenApi.Core/Execution/DynamicEndpointMiddleware.cs
index 00e391ca515..c4a5d7734cf 100644
--- a/src/HotChocolate/Adapters/src/Adapters.OpenApi.Core/Execution/DynamicEndpointMiddleware.cs
+++ b/src/HotChocolate/Adapters/src/Adapters.OpenApi.Core/Execution/DynamicEndpointMiddleware.cs
@@ -159,14 +159,9 @@ await Results.Problem(
                 var memory = writer.GetMemory(chunkSize);
                 read = await body.ReadAsync(memory, cancellationToken).ConfigureAwait(false);
                 writer.Advance(read);
+            } while (read != 0);
 
-                // if (_maxRequestSize < writer.Length)
-                // {
-                //     throw DefaultHttpRequestParser_MaxRequestSizeExceeded();
-                // }
-            } while (read == chunkSize);
-
-            if (read == 0)
+            if (writer.Length == 0)
             {
                 throw new BadRequestException("Expected to have a body");
             }
diff --git a/src/HotChocolate/AspNetCore/src/AspNetCore.Pipeline/Parsers/DefaultHttpRequestParser.cs b/src/HotChocolate/AspNetCore/src/AspNetCore.Pipeline/Parsers/DefaultHttpRequestParser.cs
index 9576c41c2ae..99cf7d30fc5 100644
--- a/src/HotChocolate/AspNetCore/src/AspNetCore.Pipeline/Parsers/DefaultHttpRequestParser.cs
+++ b/src/HotChocolate/AspNetCore/src/AspNetCore.Pipeline/Parsers/DefaultHttpRequestParser.cs
@@ -60,7 +60,7 @@ public async ValueTask<GraphQLRequest> ParsePersistedOperationRequestAsync(
         {
             const int chunkSize = 256;
             using var writer = new PooledArrayWriter();
-            var read = 0;
+            int read;
 
             do
             {
@@ -72,7 +72,7 @@ public async ValueTask<GraphQLRequest> ParsePersistedOperationRequestAsync(
                 {
                     throw DefaultHttpRequestParser_MaxRequestSizeExceeded();
                 }
-            } while (read == chunkSize);
+            } while (read != 0);
 
             if (writer.Length == 0)
             {
@@ -309,7 +309,7 @@ private async ValueTask<IReadOnlyList<GraphQLRequest>> ReadAsync(
                 {
                     throw DefaultHttpRequestParser_MaxRequestSizeExceeded();
                 }
-            } while (read == chunkSize);
+            } while (read != 0);
 
             if (writer.Length == 0)
             {