--- title: Building secure Uniswap v4 hooks | daily.dev description: Trail of Bits identifies seven recurring security failure patterns in Uniswap v4 hook development, drawing from audit findings and real-world exploits... canonical: https://daily.dev/posts/building-secure-uniswap-v4-hooks-o14twkde6 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Building secure Uniswap v4 hooks | daily.dev og:description: Trail of Bits identifies seven recurring security failure patterns in Uniswap v4 hook development, drawing from audit findings and real-world exploits... og:url: https://daily.dev/posts/building-secure-uniswap-v4-hooks-o14twkde6 og:image: https://api.daily.dev/og/posts/o14tWkDE6.png og:image:alt: Building secure Uniswap v4 hooks og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Building secure Uniswap v4 hooks **[Trail of Bits Blog](https://daily.dev/sources/trail-of-bits)** · 11 min read · 0 upvotes · 0 comments ## Summary Trail of Bits identifies seven recurring security failure patterns in Uniswap v4 hook development, drawing from audit findings and real-world exploits including Cork (~$12M) and Bunni ($8.4M). The patterns cover missing caller checks on hook callbacks, trusting unvalidated user-supplied PoolKey values, custom accounting bugs that satisfy settlement invariants while leaking value, placing logic in the wrong hook callback, address permission bit mismatches, non-essential code blocking core user flows, and shared state mutation between callbacks. Each pattern includes concrete fixes and real-world examples. The post concludes with an 8-item checklist for hook developers and 7 audit questions for reviewers. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Exposing a Critical Uniswap V4 Hook Flaw: Cross-Pool Invariant Manipulation](https://daily.dev/posts/exposing-a-critical-uniswap-v4-hook-flaw-cross-pool-invariant-manipulation-5je9fqgjg) · Coins Bench · 0 upvotes · 0 comments - [Bugs Review, Cantina, Gauntlet](https://daily.dev/posts/bugs-review-cantina-gauntlet-2llzlq6qx) · Coins Bench · 1 upvotes · 0 comments --- Tags: [#smart-contracts](https://daily.dev/tags/smart-contracts), [#solidity](https://daily.dev/tags/solidity), [#defi](https://daily.dev/tags/defi) [View this post on daily.dev](https://daily.dev/posts/building-secure-uniswap-v4-hooks-o14twkde6) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Building secure Uniswap v4 hooks","url":"https://daily.dev/posts/building-secure-uniswap-v4-hooks-o14twkde6","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/building-secure-uniswap-v4-hooks-o14twkde6"},"datePublished":"2026-07-30T11:05:52.428Z","dateModified":"2026-07-30T11:06:17.075Z","description":"Trail of Bits identifies seven recurring security failure patterns in Uniswap v4 hook development, drawing from audit findings and real-world exploits...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/c35d6d5056928d4ba413c7caf8d8d4ed?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/c35d6d5056928d4ba413c7caf8d8d4ed?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Trail of Bits Blog","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Trail of Bits Blog","logo":"https://media.daily.dev/image/upload/s--TLbYx4ip--/f_auto,q_auto/v1780213255/logos/trail-of-bits?_a=BAMAMiWQ0","url":"https://daily.dev/sources/trail-of-bits"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/building-secure-uniswap-v4-hooks-o14twkde6","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"smart-contracts,solidity,defi","timeRequired":"PT11M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Trail of Bits Blog","item":"https://daily.dev/sources/trail-of-bits"},{"@type":"ListItem","position":3,"name":"Building secure Uniswap v4 hooks"}]} ```