Bypassing quota limit

Hi an user can upload files despite having a limited quota by changing value of "OC-Total-Length" in header to "A" or adding "X-Expected-Entity-Length" in header with "A" value in normal insuffisant storage we have: PUT /remote.php/webdav/a.jpg HTTP/1.1 Content-Type: application/octet-stream OC-Async: 1 OC-Chunk-Size: 10000000 OC-Total-Length: 200 Response HTTP/1.1 507 Insufficient Storage after changing OC-Total-Length: A , the file is created and the response is: HTTP/1.1 201 Created the user can largely exceed its quota and bypass admin restriction affected version: Latest stable version: 10.0.1