Is it safe to provide CVV number by property message in booking.com

I have just canceled one of the booking I did on booking.com. it was still in free cancelation date. but property just sent me a message requesting cvv number for card to get it refunded. never happened in previous cancelation. is it safe to give cvv number to property?

No, it is definitely a scam

Since you're not paying at the property and through Booking, Booking has all the information (because you gave them at booking) to do it.

Provided you used the proper way to cancel (ie. the cancel button on the Booking page and not by a message to the hotel only for ex.) you shouldn't have to do anything. Scams on Booking.com through phishing and hacked accounts are very prevalent.

You may want to report the hotel as their account probably got hacked.