Audit Finds Gas-Heavy Design in Polygon Bridge, Rates Risk 4/10

A gas-efficiency review of the Polygon Bridge, which links Ethereum and Polygon PoS and holds roughly $2.6 billion in assets, examined its most frequently called functions. Auditors identified redundant storage operations, inefficient calldata handling, duplicated access checks, and legacy SafeMath code that inflate transaction costs. The review found no critical security flaws caused directly by these inefficiencies. However, it warned that the high gas costs could enable denial-of-service tactics, front-running of withdrawals, and congestion during periods of market stress, and assigned the bridge a risk score of 4 out of 10.