The Bible does not teach that we need the Catholic church or any other denomination for forgiveness of sin. That is a doctrine of man.
Actually, Christ tells Peter:
“I give you the keys to the Kingdom of Heaven, the gate you open no one can shut. Whatsoever you bind on Earth shall be bound in Heaven, and whatsoever you loose on Earth shall be loosed in Heaven.”
So, yeah, Christ gives Peter and the Apostles the authority to forgive sins.