Yearn Finance (YFI) Recovers $2.4 Million After yETH Attack

Jakarta, Pintu News – Yearn Finance has taken the first important step in repairing the damage from the recent yETH attack by successfully recovering some of the lost funds. The decentralized finance protocol managed to secure back $2.4 million of the total $9 million stolen in the incident. This recovery is the result of a collaboration between Yearn Finance, Plume, and Dinero.

Details of the Attack that Befell yETH Pool

An attack on an aged yETH pool on Yearn Finance occurred on November 30 at 21:11 UTC. This yETH stableswap pool uses custom code that differs from the standard Curve (CRV) implementation.

Due to an undetected arithmetic error, the attacker managed to mint a very large amount of yETH in a single transaction, which was then used to drain assets from the affected pools. From this attack, approximately $8 million was successfully taken from the yETH stableswap pool and an additional $900,000 from the yETH-WETH pool on Curve.

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Recovery Process and Impact

In the recovery effort, Yearn teamed up with Plume and Dinero to neutralize pxETH positions that were still within the reach of attackers. A total of 857.49 pxETH was recovered, which is equivalent to $2.39 million.

These recovered funds will be returned to the affected users without the need to wait for litigation or lengthy negotiations. The Yearn team is still continuing recovery efforts and hopes to secure more assets as the situation in the chain allows.

Next Steps and Communication with Users

Yearn Finance has asserted that other products in their ecosystem do not use the same code path and that old contracts are being reviewed to prevent similar issues in the future.

Affected users can request support via the Yearn Discord for the duration of the investigation. This quick and transparent communication has helped stabilize sentiment around the Yearn ecosystem, especially after the sharp drop in YFI tokens that occurred immediately after the attack.

Conclusion

With a successful recovery in place and enhanced preventative measures in place, Yearn Finance seeks to ensure the security of user assets and strengthen confidence in its services. A full report on this incident is expected to be released shortly after audit partners complete their review, providing further insight into how this attack could have occurred and how to avoid it in the future.

FAQ

What is Yearn Finance?

Yearn Finance is a decentralized finance protocol that focuses on optimizing earnings from crypto deposits through lending and trading strategies.

What was the total amount of funds lost in the yETH attack?

The total funds lost in the attack was $9 million, with $8 million from the yETHswap stable pool and $900,000 from the yETH-WETH pool.

How did Yearn Finance manage to recover some of the lost funds?

Yearn Finance worked with Plume and Dinero to neutralize and secure back 857.49 pxETH, equivalent to $2.39 million, which had not been mixed or converted by the attackers.

Are any other Yearn products affected by this attack?

No, other products in the Yearn ecosystem do not use the same code path and are not affected by this attack.

When is a full report on this incident expected to be released?

A full report is expected to be released soon after the audit partners complete their review, which will provide more details on the incident and preventative measures for the future.

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Reference

• Crypto News. Yearn Finance Recovers $2.4M yETH Exploit. Accessed on December 3, 2025
• Featured Image: BeInCrypto