Upwards of $100 million worth of cryptocurrency are at risk due to a “re-entrancy” bug in Vyper, a programming language used to power parts of the Curve system. Several stablecoin pools on the platform — used for pricing and liquidity on a number of different DeFi services — have been drained by hackers so far.It was unclear at press time how much had been drained from Curve as a result of the attack.
The heist destabilized trading markets for Curve DAO’s native CRV token, which was down 17% on the day at a price of $0.61 as of press time. That price action threatened to compound the chaos by potentially forcing a liquidation on the founder of Curve’s $70 million borrowing position on Aave.
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Curve Finance factory pools targeted due to reentrancy vulnerabilityFactory pools on Curve Finance faced a reentrancy vulnerability, a security flaw allowing potential funds drain from interrupted contract calls.
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Curve Finance pools exploited in over $24M due to reentrancy vulnerabilitySeveral stable pools on Curve Finance using Vyper were exploited on July 30, with losses reaching $24 million at the time of writing. Several stable pools on Curve Finance were exploited on July 30, with losses reaching $24 million. According to Vyper, its 0.2.15, 0.2.16, and 0.3.0 versions are vulnerable to malfunctioning reentrancy locks, leaving projects relying on these versions exposed to potential risks.
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