Uniswap V4 introduces powerful but risky innovation with its hook system. While the core Uniswap team and protocol are well-funded and battle-tested, the permissionless hook ecosystem creates an entirely new attack surface that has already been exploited. The singleton architecture trades gas savings for systemic concentration risk. Best suited for DeFi-savvy users who carefully evaluate the hooks on pools they interact with.
Top Risks
1
Permissionless hooks execute arbitrary code on every swap, enabling novel attack vectors with 36% of analyzed hooks found potentially vulnerable
2
Custom accounting hooks take full custody of pool assets, meaning a single hook bug can drain entire pool liquidity
3
Cork Protocol $11M exploit (May 2025) demonstrated real-world hook access control failures in production
Risk Breakdown
Frequently Asked Questions
Is Uniswap V4 safe to use?
Uniswap V4 receives a B- risk grade (30/100) from Hindenrank, where lower scores indicate lower risk. Uniswap V4 introduces powerful but risky innovation with its hook system. While the core Uniswap team and protocol are well-funded and battle-tested, the permissionless hook ecosystem creates an entirely new attack surface that has already been exploited. The singleton architecture trades gas savings for systemic concentration risk. Best suited for DeFi-savvy users who carefully evaluate the hooks on pools they interact with. Uniswap V4 is the latest version of the world's largest decentralized exchange. Its headline feature is 'hooks' — customizable plugins that developers can attach to trading pools to add features like dynamic fees, limit orders, and custom trading strategies. V4 also consolidates all pools into a single smart contract (reducing costs by up to 99% for pool creation) and supports native ETH trading. With $640M in TVL, V4 is still ramping up adoption alongside the established V3.
What are the main risks of using Uniswap V4?
The key risks identified for Uniswap V4 are: (1) Hooks can run any code when you trade — a malicious or buggy hook could steal your funds or give you a worse trade (2) All V4 pools share one smart contract, so a single vulnerability could put everyone's funds at risk at the same time (3) V4 is new (launched 2025) and the hook system has already seen a real exploit ($11M Cork Protocol hack)
What is Uniswap V4's risk score breakdown?
Uniswap V4 scores 30/100 across eight risk dimensions: Mechanism Novelty: 6/15, Interaction Severity: 8/20, Oracle Surface: 1/10, Documentation Gaps: 2/10, Track Record: 4/15, Scale Exposure: 7/10, Regulatory Risk: 1/10, Vitality Risk: 1/10. The highest risk area is Scale Exposure at 7/10.
How does Uniswap V4 compare to other DEX protocols?
Among 111 rated DEX protocols on Hindenrank, Uniswap V4 ranks #47 by safety (lowest risk score = safest). Its 30/100 risk score and B- grade place it in the middle tier of DEX protocols.
Has Uniswap V4 ever been hacked or exploited?
Uniswap V4 scores 4/15 on the Track Record risk dimension, indicating some history of security incidents or exploits. Higher scores reflect more severe or frequent incidents. Review the full risk report for details.