Disclosing a proposal My PI forwarded to me the proposal of a project I have to work on. Recently, a new postdoc arrived and he is supposed to write a  proposal by himself. He asked me to forward the one I received from my PI. The issue is that I am not sure if I should disclose it without having explicitly PI's authorization. This person told me that PI was OK with it (but I wasn't  present at that meeting). Am I being too paranoid?. 

My rationale behind this is that I shouldn't be forwarding something I didn't write to anyone unless the author says is fine with it. Besides, this is an ongoing project... In any case, I have already written to PI to have his authorization, but meanwhile, it is uncomfortable to deal with the other person. I would like to know your opinions about this. Thanks.
Tell the other student as many times as necessary that you just need the okay directly from the PI and then you'll be happy to forward it.

I would try to steer the PI away from okaying the forward.  It would be different if you already knew and trusted this individual.

The germ of an idea for a project can be very important.  This is your baby and I understand your wanting to protect it.

(You need not explain that to the other student.)