We consent to the incorporation by reference in the Registration Statement (Form S-8) pertaining to the 2019 Equity Incentive Plan, as amended, of Infinity Pharmaceuticals, Inc. of our report dated March 29, 2022, with respect to the
consolidated financial statements of Infinity Pharmaceuticals, Inc. included in its Annual Report (Form 10-K) for the year ended December 31, 2021, filed with the Securities and Exchange Commission.