DeFi Hooks Under Scrutiny: Security Risks in Custom Trade Execution
AI Market Summary
0x's analysis flags material security risk in Uniswap v4 hooks: across 84,163 hooks on six chains, only 19.4% are deemed safe while 54.2% are classified as malicious and 26.4% as potentially malicious. Because hooks can alter pool fees, pricing, and execution logic, the findings highlight systemic smart-contract and MEV-style exploit vectors that could undermine trader confidence and liquidity participation around Uniswap v4 ecosystems.
Impact level
● Medium
Affected assets
UNI/USDT-1.49%
AI Insight · UNI/USDTAI Insight
▼ Bearish
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0x published an analysis warning of significant security risks tied to Uniswap v4 hooks. Across 84,163 hooks collected from six chains, only 19.4% were classified as safe, while 54.2% were deemed outright malicious and 26.4% flagged as potentially malicious. These custom external contracts can alter a liquidity pool's fee settings, pricing, and execution logic. The report also recorded 6,516 order fills and 3,946 fee charges linked to hooks, underscoring systemic risks for DeFi protocols that rely on external systems.
