Hi
I am using a self-hosted n8n instance installed with npm on a Ubuntu server
I noticed recently a bunch of temporary files accumulating (I deleted since but here is a screenshot after doing some test to identify the guilty)
It seems like the source of these file is a simple POST webhook receiving a file through a multipart/form-data query:
Everytime this WH is triggered, the file is downloaded and stored in /tmp with a cryptic name.
I think you should delete the file once the WF is finished. In my case, I actualy receive some heavy files and this accumulation could be a problem.