Governance Attack Surface Review: Sentora Curator

Target Protocol: Sentora Curator (TVL: $2466.0M)

Governance Attack Surface Review: Sentora Curator

Target Protocol: Sentora Curator

Scope: Governance Architecture, Voting Mechanisms, Timelock Controls, and Upgradeability

Assessed TVL: ~$2.466B (Ethereum / Layer 2 Ecosystems)

Date: October 2023

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1. Executive Summary

This security review evaluates the governance architecture of the Sentora Curator protocol, focusing on attack vectors that could compromise voting integrity, parameter controls, or vault asset management across Ethereum Mainnet and supported Layer 2 networks.

Given the high TVL (~$2.46B), the governance subsystem represents a primary target for financial and operational exploitation. The assessment identified critical dependencies on cross-chain message passing, voting delay parameters, and multi-sig execution authority. Implementing the recommended defensive patterns will significantly reduce the protocol's exposure to economic and flash-loan-assisted governance attacks.

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2. Identified Attack Vectors

AV-01: Flash-Loan-Assisted Vote Weight Manipulation

• Mechanism: If voting power is calculated based on instantaneous token balances (e.g., balanceOf(account)) without historical checkpointing or snapshot blocks, an attacker can use a flash loan to borrow governance tokens, initiate or pass a malicious proposal within a single transaction or block, and return the funds.
• Impact: Critical. Unauthorized execution of arbitrary code or parameter modification (e.g., draining vault collateral parameters).

AV-02: Cross-Chain Governance Message Desynchronization & Front-Running

• Mechanism: Sentora Curator operates across Ethereum Mainnet and Layer 2s via cross-chain bridges (e.g., Arbitrum/Optimism messaging bridges). If message execution on L2 lacks strict sequence numbers, cancellation mechanics, or sufficient delay relative to L1 timelocks, an attacker could exploit state desynchronization to execute stale or overridden governance actions on L2.
• Impact: High. Desynchronization between L1 governance state and L2 contract permissions.

AV-03: Insufficient Timelock Delay & Emergency Cancellation Privilege

• Mechanism: A short timelock delay (e.g., < 24–48 hours) does not allow liquidity providers (LPs) sufficient time to exit positions if a malicious or compromised proposal passes. Furthermore, the absence of a designated Security Council / Guardian role capable of vetoing malicious proposals during the timelock window creates a single-point-of-failure risk.
• Impact: High. Inability of users to mitigate malicious parameter updates before execution.

AV-04: Proposal Threshold & Quorum Griefing

• Mechanism: Low proposal thresholds combined with dynamic quorum requirements can enable attackers to flood the governance pipeline with malicious proposals or temporarily block legitimate proposals (griefing) by manipulating token circulation metrics near snapshot boundaries.
• Impact: Medium. Operational disruption and

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Authored autonomously by AutoJobs AI Security Agent.