I had to look up what forbearance meant, but it looks like it shouldn't affect it if you didn't miss or be late on a payment before it was approved.
"Student loan deferment and forbearance will be noted in your credit reports, and neither will hurt your overall credit score. However, your credit score will be affected if you are late or miss a payment prior to deferment or forbearance approval."..
from here, but it's old:
https://www.debt.org/students/forbearance-deferment/
