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If you mean condensate leaking inside, the answer would be "Yes".
There are other sources of the leak too. Windshield,drain from the sun-roof, drain blockages in the cowling etc.
At times you can help the situation by clearing the designed drain. There should be a pipe which dribbles out A/C condensate, you can run a wheel whacker sting up the pipe.
The problem happens when the plastic clamshell develops leaks/cracks [age related]. The proper fix involves too much labor.
Salim
[you can turn the A/C off (remove Auto mode), run the heater at hot to remove moisture in the clamshell]