ERC-777/1155/721 hook without reentrancy guard

Yearn Finance's assessment for RD-F-015 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

V3 vault interacts with ERC-20 asset tokens only (ERC-4626 standard). No ERC-777 callback pattern identified in VaultV3.vy. V2 core vault is also asset-ERC20 only. No evidence of unguarded ERC-777/1155/721 hooks in core vault contracts.

Sources #

URL
Yearn V3 overview — ERC-4626 compliant, asset is ERC-20 onlyYearn V3 overview — ERC-4626 single asset ERC-20retrieved 2026-05-16

Methodology #

Determine whether the protocol integrates token standards with callbacks (ERC-777 tokensReceived, ERC-1155 onReceived, ERC-721 onReceived) without reentrancy guards on the affected functions.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol yearn-finance factor RD-F-015 score green collected_at 2026-05-16 08:34:32