VulnerabilityRapid7 Blog·6 hours ago
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VulnerabilityTrail of Bits·3 weeks ago
Building secure Uniswap v4 hooks
Uniswap v4's hook architecture enables powerful customization but shifts security responsibilities to application developers, as demonstrated by the Cork ($12M) and Bunni ($8.4M) exploits—both stemming from flawed hook code rather than protocol vulnerabilities. The article identifies seven recurring failure patterns in hook development, including missing caller checks, unvalidated pool selection, accounting bugs, and callback state management issues, alongside an eight-point secure development checklist for builders and seven-point audit framework for reviewers. Understanding these patterns is critical for developers integrating with v4, as hooks execute in the same transaction as pool actions and can silently leak value even when settlement invariants are satisfied.
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