Yearn Finance

Exploit

Estimated loss

$11.00M

VERDICT —UNRATED

Verdict pending. Auto-ingested incidents are reviewed before a public verdict is rendered.

▰ METHOD

Undisclosed

Root cause

Root-cause analysis not yet published. The incident description below contains all currently available signal — review the attack transaction directly for definitive forensics.

▰ PROOF OF CONCEPT

DEFIHACKLABS

src/test/2021-02/Yearn_ydai_exp.sol

view forked test on github ↗

Reproducible Foundry test fork from SunWeb3Sec/DeFiHackLabs. Clone the repo, run forge test against the file path above, and replay the exploit against a mainnet fork at the historical block. Use for reproduction only — not for live targets.

Forensic narrative

DeFi yield farming project Yearn Finance has been hit by an exploit that has affected a DAI lending pool. Reported loss: $11,000,000.

Primary source

https://decrypt.co/56659/14-million-gone-in-yearn-finance-exploit ↗

Sourced from

chainsec

Technical record