ERC-777/1155/721 hook without reentrancy guard
mETH Protocol'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 #
No ERC-777, ERC-1155, or ERC-721 hook integration found. mETH token is ERC20PermitUpgradeable (standard OZ v4.9.0, no callback hooks). The staking contracts interact with ETH and the mETH ERC-20 token only. No unsafe callback pattern identified.
Sources #
- GitHubMETH.sol — token standard inspection (ERC20PermitUpgradeable, no hooks)METH.sol imports ERC20PermitUpgradeable — no ERC-777 or NFT hook interfacesretrieved 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 meth-protocol factor RD-F-015 score green collected_at 2026-05-16 02:17:50