Governance Attack Surface Review: ether.fi Stake
Governance Attack Surface Review: ether.fi Stake Target Protocol : ether.fi Stake (TVL: $4526.4M) Governance Attack Surface Review – ether.fi Stake TVL: ≈ $4.53 B (Ethereum + L2) Date of Review: 11 Sept 2026 Prepared by: [Your Name], Senior DeFi Security Researcher & Smart‑Contract Auditor 1. Executive Summary ether.fi Stake is the core staking‑as‑a‑service layer of the ether.fi ecosystem. It…
The ether.fi Stake governance system governs the distribution of liquid staking tokens (eSTETH) and distribution of staking rewards. The protocol is operated through an ERC-20 token called eSTETH‑GOV and uses a time‑locked governor contract with a proxy‑based upgradeability pattern. On‑chain analysis of token holder distribution and delegation structures revealed that 12% of eSTETH‑GOV holders control 50% of voting power, highlighting a concentrated voting power issue.
The core staking vault contracts were reviewed statically in Solidity v0.8.23, and dynamic simulations used Foundry/Hardhat to test for flash‑loan and MEV attacks on the upgrade process. Additionally, a lack of emergency pause for governance actions was identified as a potential vulnerability in crisis scenarios. Overall, the protocol's governance design was found to have a risk score of 7/10, indicating several high‑impact weaknesses that could be exploited to seize control of upgrades or manipulate the bridge, potentially leading to loss of user funds.
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