I post this picture about once a week for splinter fix advice.
String your bow to spread the crack, fill the crack with good superglue, I use Loctite, unstring the bow to close the crack and wrap the area about 1/2" past the crack on each side and soak the wrap with superglue until it won't hold any more. I soak the wrap, let the glue cure and soak several more times before I call it done.
I use a string server and braded nylon serving thread for my wraps. I can put the wrap on really neatly this way and serve the limb exactly like I would serve a string.
These wraps tend to last forever, done properly you should never have a problem out of this area of your bow limb again.
I did a friend's bow last week that had cracked out from under a snake skin backing. When I removed the skin in the cracked area things didn't look too bad. After I started adding supper glue the stuff ran out of the limb from multiple places like water running out of a sieve. The bow was one pull away from exploding.
I kept adding superglue to the crack until it wouldn't hold any more, bent the bow backward to close the crack, let the glue cure and added the wrap. The bow is fine now and shoots great.