USD Stablecoin Exploit Highlights DeFi Infrastructure Risks

A USD-pegged stablecoin named USR has suffered a severe depeg following a critical exploit in its underlying logic. The attack, which targeted the Resolv platform, allowed an attacker to create 50 million unbacked USR tokens using only $100,000 in initial capital.

The incident is significant because it highlights the persistent dangers present in DeFi infrastructure, particularly in protocols that handle minting and swap mechanics. According to available on-chain data, the attack's efficiency was remarkable, requiring minimal input to cause disproportionate damage.

Researchers from D2 security have identified potential flaws in the Resolv platform's requestSwap and completeSwap functions, which may be responsible for the issue. These vulnerabilities allowed the system to validate or complete swap transactions incorrectly, enabling the creation of fake, uncollateralized USR tokens.