Flash Loan Attack Vector Analysis: LayerZero V2

Target Protocol: LayerZero V2 (TVL: $7110.8M)

Technical Security Report: Flash Loan Attack Vector Analysis (LayerZero V2 Ecosystem)

Target Protocol: LayerZero V2 (Omnichain Messaging Infrastructure)

Scope: Flash Loan Vulnerability Analysis across Protocol Core, DVNs, Executors, and Endpoint-Integrated OApps

Document Class: Technical Security Assessment

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1. Executive Summary

LayerZero V2 operates as an immutable, censorship-resistant messaging layer utilizing a modular architecture comprising Endpoints, Decentralized Verifier Networks (DVNs), and Executors. Unlike liquidity-hosting DeFi primitives, LayerZero core logic does not hold pool liquidity, making direct flash loan attacks against the core protocol non-viable.

However, Omnichain Applications (OApps) and Omnichain Fungible Tokens (OFTs) deployed on top of LayerZero V2 exposed to flash-loan-assisted state manipulation face systemic attack vectors. These risks primarily stem from instant cross-chain state imbalances, temporary oracle price manipulation affecting DVN verification logic, and reentrancy execution contexts during message delivery.

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2. Identified Attack Vectors

Vector 1: Flash-Loan-Assisted Oracle Manipulation in DVN Verification

• Mechanism: DVNs verifying message payloads often rely on spot-price oracles

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