Finally found where my hydraulic brake leaks.. now how do i fix it ?

Title pretty much says it all….

Ive been having problems with my rear brake. (hydraulic) ive been topping it off every other week and i did 2 full bleeds in the whole summer which made me slowly look for a culprit. I thought that something got punctured somewhere in my internal cable routing, but turns out its just leaking from the part I (tried my best to) show in the video.

Is it fixable ? If so, how?
If not, new brakes it is then?

Thanks in advance everyone,

~ Cheers !! ~