leakage

Can anyone shed light on the issue of water leaking and pooling in the spare tire well? could it be related to bad taillight gaskets?

I am a new owner of a 2016 CRV and am so disappointed to have water pour onto my seats during a rain. It appears the water accumulates in the door seam and once the door is opened, it pours in. I also am surprised that so much water pours down from the hatch when I open it and again get...