Is Uniswap V4 Safe?
Risk Grade: B- (30/100)
Uniswap V4 is rated as moderate risk — some novel mechanisms, generally well-understood.
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.
TVL
$646M
Mechanisms
8
Interactions
5
Value Grade
B
Key Risks for Uniswap V4 Users
Hooks can run any code when you trade — a malicious or buggy hook could steal your funds or give you a worse trade
All V4 pools share one smart contract, so a single vulnerability could put everyone's funds at risk at the same time
V4 is new (launched 2025) and the hook system has already seen a real exploit ($11M Cork Protocol hack)
Top Risk Factors
- •Permissionless hooks execute arbitrary code on every swap, enabling novel attack vectors with 36% of analyzed hooks found potentially vulnerable
- •Custom accounting hooks take full custody of pool assets, meaning a single hook bug can drain entire pool liquidity
- •Cork Protocol $11M exploit (May 2025) demonstrated real-world hook access control failures in production
Risk Score Breakdown
Uniswap V4's highest risk area is Scale Exposure (7/10). Here's how each dimension contributes to the overall 30/100 score:
Read the Full Uniswap V4 Risk Report
This protocol has 3 collapse scenarios. 1 critical and 2 high-severity interaction risks identified. See the full mechanism classification, interaction matrix, and deep-dive recommendations.
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