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Earnings Misconfigured: Yearn.finance Exploit Explained

ID: 189a7b3f-f0b4-58e2-bdff-10847f2421e7

STIX ID: report--189a7b3f-f0b4-58e2-bdff-10847f2421e7

Feed Name: CertiK Blog

Threat Score
70/100

Date Published: 2024-01-08

Date Updated: 2026-06-11

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On April 13, 2023 Yearn Finance suffered a misconfiguration exploit of the yUSDT vault: the contract referenced Fulcrum's iUSDC instead of iUSDT, causing approximately $10M in losses due to token-exchange rate discrepancies; the issue was attributed to configuration error and noted as out of scope by a prior audit.

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