McCormack netted for Leeds with a superb equaliser in their 1-1 draw with Yorkshire rivals Sheffield Wednesday at Elland Road on Saturday.
And the Scotland international, reportedly the subject of £1m and £1.3m bids from Championship rivals Boro, said: "If I'm going to go it's going to be their (the club's) decision. It's not going to be my decision.
"Not once have I asked for a transfer and I won't force through a move.
"But if there's an issue with the club and they need me to move on for money, sometimes in life you do things that you don't want to do."
McCormack added: "I'm firmly happy here and I'm settled in the area. It's always nice when other clubs are putting in offers for you but as I've said numerous times, I'm happy.
"This is a massive club and I'm really honoured to be here."