--- title: JWT attacks | daily.dev description: JWT attacks can allow attackers to modify tokens and escalate privileges or impersonate users. These attacks can be prevented by using strong algorithms,... canonical: https://daily.dev/posts/jwt-attacks-rno9v7wzd twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: JWT attacks | daily.dev og:description: JWT attacks can allow attackers to modify tokens and escalate privileges or impersonate users. These attacks can be prevented by using strong algorithms,... og:url: https://daily.dev/posts/jwt-attacks-rno9v7wzd og:image: https://api.daily.dev/og/posts/RnO9V7WzD.png og:image:alt: JWT attacks 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. # JWT attacks **[Towards Dev](https://daily.dev/sources/towardsdev)** · 9 min read · 63 upvotes · 1 comments ## Summary JWT attacks can allow attackers to modify tokens and escalate privileges or impersonate users. These attacks can be prevented by using strong algorithms, verifying signatures, validating claims, and implementing proper security measures. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@emmanuelgautier** · 0 upvotes > Good article in order to have a good overview of the JWT vulns. Well explains. > > Maybe some other tools can be interesting: > - https://github.com/ticarpi/jwt_tool (classic and very useful) > - https://github.com/cerberauth/vulnapi (mine, not as exhaustive yet but can scan automatically) ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 1 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security), [#authentication](https://daily.dev/tags/authentication), [#jwt](https://daily.dev/tags/jwt) [View this post on daily.dev](https://daily.dev/posts/jwt-attacks-rno9v7wzd) ```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":"JWT attacks","url":"https://daily.dev/posts/jwt-attacks-rno9v7wzd","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/jwt-attacks-rno9v7wzd"},"datePublished":"2024-05-09T14:50:58.099Z","dateModified":"2024-05-09T14:50:57.253Z","description":"JWT attacks can allow attackers to modify tokens and escalate privileges or impersonate users. 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Well explains.\nMaybe some other tools can be interesting:\n\nhttps://github.com/ticarpi/jwt_tool (classic and very useful)\nhttps://github.com/cerberauth/vulnapi (mine, not as exhaustive yet but can scan automatically)","datePublished":"2024-05-23T23:01:42.409Z","url":"https://daily.dev/posts/RnO9V7WzD#c-qFq7hOWF6","author":{"@type":"Person","name":"Emmanuel Gautier","url":"https://daily.dev/emmanuelgautier","image":"https://avatars1.githubusercontent.com/u/2765366?v=4"}}]} ```