Yearn: yETH pool suffered a complex attack, losing approximately $8.90 million
ChainCatcherDec 1, 2025
Yearn issued a statement saying that its yETH stable pool was attacked on November 30 at 21:11 UTC. The attacker minted a large amount of yETH through a custom contract, resulting in a loss of approximately $8.00 million in assets in the pool, and another approximately $900,000.00 loss came from the yETH-WETH pool on Curve.Yearn stated that the affected code is not related to other products, and V2/V3 Vaults were not affected. It also stated that the complexity of the incident is similar to the previous Balancer attack. Currently, the team has jointly launched an investigation with SEAL911 and auditing firm ChainSecurity.[ChainCatcher]
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Yearn: yETH pool suffered a complex attack, losing approximately $8.90 million
ChainCatcherDec 1, 2025
Yearn issued a statement saying that its yETH stable pool was attacked on November 30 at 21:11 UTC. The attacker minted a large amount of yETH through a custom contract, resulting in a loss of approximately $8.00 million in assets in the pool, and another approximately $900,000.00 loss came from the yETH-WETH pool on Curve.Yearn stated that the affected code is not related to other products, and V2/V3 Vaults were not affected. It also stated that the complexity of the incident is similar to the previous Balancer attack. Currently, the team has jointly launched an investigation with SEAL911 and auditing firm ChainSecurity.[ChainCatcher]
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