Sitefinity 15.4.8635+ uploads larger than 100 MB fail when chunked uploads are disabled

Uploading files larger than 100 MB may fail with an HTTP 500 error when using the Sitefinity backend. In some cases, application logs may contain a Microsoft.OData.ODataException indicating that the maximum number of bytes allowed to be read from the stream has been exceeded. The issue affects large file uploads and prevents documents from being uploaded successfully through the standard backend upload process.

  • Sep 16, 2026
  • Knowledge

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