leaking water out bottom of coffee maker

There are several possible causes.

The easiest to check and fix is that the holding tank is cracked and leaking.

Its also possible that the needle is clogged up with grounds, you can use a paperclip to clean out the needle.

It could also be that something is broken inside the which is difficult to diagnose without taking it entirely apart.

The bottom needle broke off with the plastic it it modes to.

Is there a replacement part available?

There are some easiest ways to fix this problem:

Faulty O-Ring

Inspect The Water Reservoir

Keurig Needs To Be Descaled

Broken internal Part

you can see all the solutions on this guide How to Fix Keurig Leaking Water/Coffee From Bottom