Losing brake fluid
I would guess thats the abs block. Is it leaking from the line, line/fitting, fitting/block? Could try to tighten it a little and see if it helps. If not then need to replace whatever is leaking.
I recommend wiping the area down with a cloth then getting it dry with brake cleaner. Have someone press on the brake while you watch for the leak. You'll need to know the source of the leak before you can fix it.



