Financial Digest

Vyper vulnerability exposes DeFi ecosystem to stress tests

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As one of the most widely used Web3 programming languages, several other DeFi protocols could be affected by Vyper's reentrancy bug.

Decentralized finance protocols are undergoing a stress test following a critical vulnerabilityprogramming language, resulting in the theft of millions of dollars' worth of cryptocurrencies on July 30.

A number of pools using Vyper 0.2.15, 0.2.16 and 0.3.0 have been exploited due to a malfunctioning reentrancy lock, targeting at least four liquidity pools on Curve Finance protocol."The short answer is that everything that could be drained was drained. The targeted pools are aETH/ETH, msETH/ETH, pETH/ETH and CRV/ETH. All remaining pools are safe and unaffected by the bug," Curve Finance said on Discord.

BlockSec, an auditing firm for smart contracts, noted that the reentrancy could potentially place all pools withPlease note that this reentrancy issue is associated with the use of 'use_eth', which could potentially place the WETH-related pools in jeopardy!

 

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