Incident Overview
A newly deployed vault contract of Thetanuts Finance was exploited via a First Depositor Attack. The attacker took advantage of the vault’s share calculation logic when totalAssets and totalSupply were both 0 at initialization: they deposited a minimal amount (e.g., 1 wei) to mint 1 share, then directly transferred a large amount of assets (e.g., ETH) to the contract, manipulating the asset-to-share ratio. When subsequent users deposited, they received almost no shares, allowing the attacker to redeem their single share for nearly all the vault’s assets. The loss was approximately $50,000. The protocol focuses on on-chain options and yield vaults; this incident affected a specific new vault.
Sources & References
This record presents information attributed to the linked sources. Incident dates describe the original event, not a new report. Reported loss figures reflect the source record and are not current market valuations.