This issue was brought up recently but there are no mention anywhere on how to fix it in older spring versions. (< 5.x) other than upgrade to latest Spring jar. Currently our web-app is using 4.1.5.
The article merely states Older, unsupported versions are also affected but no mention on how to fix those. Spring website doesn't mention a fix.
Upgrade to latest spring is not an option for now. If no other solutions to this problem, another approach will be to replace Spring MultipartFile with Apache Commons File Upload.