What information can a mortgage company share with the Seller's Agent

What information about a buyer's loan can the mortgage company give to the seller's agent? I am in the middle of a renegotiation since the house did not appraise and was offered to buy lender's points to lower my closing costs. However, it will increase my interest rate and therefore my monthly payment. Can my mortgage company disclose these options to the seller's agent? Can a mortgage agent at the company that I am not working with discuss the details with the seller? Is it legal for moprtgage agents that I am not working with at the mortgage company be informed on the details of the transaction?