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chore(deps): update devdependency nuxt to v3.19.0 [security] #385

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This PR contains the following updates:

Package Change Age Confidence
nuxt (source) 3.17.7 -> 3.19.0 age confidence

GitHub Vulnerability Alerts

CVE-2025-59414

Summary

A client-side path traversal vulnerability in Nuxt's Island payload revival mechanism allowed attackers to manipulate client-side requests to different endpoints within the same application domain when specific prerendering conditions are met.

Technical Details

The vulnerability occurs in the client-side payload revival process (revive-payload.client.ts) where Nuxt Islands are automatically fetched when encountering serialized __nuxt_island objects. The issue affects the following flow:

  1. During prerendering, if an API endpoint returns user-controlled data containing a crafted __nuxt_island object
  2. This data gets serialized with devalue.stringify and stored in the prerendered page
  3. When a client navigates to the prerendered page, devalue.parse deserializes the payload
  4. The Island reviver attempts to fetch /__nuxt_island/${key}.json where key could contain path traversal sequences

Prerequisites for Exploitation

This vulnerability requires all of the following conditions:

  1. Prerendered pages: The application must use Nuxt's prerendering feature (nitro.prerender)
  2. Attacker-controlled API responses: The attacker must be able to control the response content of an API endpoint that is called during prerendering via useFetch, useAsyncData, or similar composables
  3. Client-side navigation: A user must navigate to the prerendered page (not during initial SSR hydration)

Attack Scenario

// Malicious API response during prerendering { "__nuxt_island": { "key": "../../../../internal/service", "params": { "action": "probe" } } }

This could cause the client to make requests to /__nuxt_island/../../../../internal/service.json if path traversal is not properly handled by the server.

Impact Assessment

  • Limited Impact: The vulnerability has a low severity due to the highly specific prerequisites
  • No Direct Data Exfiltration: The vulnerability does not directly expose sensitive data
  • Client-Side Only: Requests originate from the client, not the server

Mitigation

Action Required:

  • Update to Nuxt 3.19.0+ or 4.1.0+ immediately
  • Review any prerendered pages that fetch external or user-controlled data

Temporary Workarounds (if immediate update is not possible):

  1. Disable prerendering for pages that fetch user-controlled data
  2. Implement strict input validation on API endpoints used during prerendering
  3. Use allowlists for API response structures during prerendering

Fix Details

The fix implemented validation for Island keys in revive-payload.server.ts:

  • Island keys must match the pattern /^[a-z][a-z\d-]*_[a-z\d]+$/i
  • Maximum length of 100 characters
  • Prevents path traversal and special characters

Release Notes

nuxt/nuxt (nuxt)

v3.19.0

Compare Source

👀 Highlights

Please see the release notes for Nuxt v4.1 for full details on the features and fixes in Nuxt v3.19.

✅ Upgrading

As usual, our recommendation for upgrading is to run:

npx nuxt upgrade --dedupe

This will refresh your lockfile and pull in all the latest dependencies that Nuxt relies on, especially from the unjs ecosystem.

👉 Changelog

compare changes

🚀 Enhancements
  • kit: Add ignore option to resolveFiles (#​32858)
  • kit: Add onInstall and onUpgrade module hooks (#​32397)
  • nuxt,vite: Add experimental support for rolldown-vite (#​31812)
  • nuxt: Extract defineRouteRules to page rules property (#​32897)
  • nuxt,vite: Use importmap to increase chunk stability (#​33075)
  • nuxt: Lazy hydration macros without auto-imports (#​33037)
  • kit,nuxt,schema: Allow modules to specify dependencies (#​33063)
  • kit,nuxt: Add getLayerDirectories util and refactor to use it (#​33098)
🔥 Performance
  • nuxt: Clear inline route rules cache when pages change (#​32877)
  • nuxt: Stop watching app manifest once a change has been detected (#​32880)
🩹 Fixes
  • nuxt: Handle satisfies in page augmentation (#​32902)
  • nuxt: Type response in useFetch hooks (#​32891)
  • nuxt: Add TS parenthesis and as expression for page meta extraction (#​32914)
  • nuxt: Use correct unit thresholds for relative time (#​32893)
  • nuxt: Handle uncached current build manifests (#​32913)
  • kit: Resolve directories in resolvePath and normalize file extensions (#​32857)
  • schema,vite: Bump requestTimeout + allow configuration (#​32874)
  • nuxt: Deep merge extracted route meta (#​32887)
  • nuxt: Do not expose app components until fully resolved (#​32993)
  • kit: Only exclude node_modules/ if no custom srcDir (#​32987)
  • nuxt: Compare final matched routes when syncing route object (#​32899)
  • nuxt: Make vue server warnings much less verbose in dev mode (#​33018)
  • schema: Allow disabling cssnano/autoprefixer postcss plugins (#​33016)
  • kit: Ensure local layers are prioritised alphabetically (#​33030)
  • kit,nuxt: Expose global types to vue compiler (#​33026)
  • nuxt: Support config type inference for defineNuxtModule().with() (#​33081)
  • nuxt: Search for colliding names in route children (31a9282c2)
  • nuxt: Delete nuxtApp._runningTransition on resolve (#​33025)
  • nuxt: Add validation for nuxt island reviver key (#​33069)
  • kit: Prioritise local layers over extended layers (ae8b0d2b8)
  • kit: Address merge conflict (89ccbbebb)
  • kit: Do not resolve public dir aliases (5d87d3a80)
💅 Refactors
  • nuxt: Simplify page segment parsing (#​32901)
  • nuxt: Remove unnecessary async/await in afterEach (#​32999)
  • vite: Simplify inline chunk iteration (9ea90fc33)
  • kit,nuxt,ui-templates,vite: Address deprecations + improve regexp perf (#​33093)
📖 Documentation
  • Add a section about augmenting types with TS project references (#​32843)
  • Switch example to use vitest projects (#​32863)
  • Update testing setupTimeout and add teardownTimeout (#​32868)
  • Add middleware to layers guide (fa516d440)
  • Add documentation for --nightly command (#​32907)
  • Update package information in roadmap section (#​32881)
  • Add more info about nuxt spa loader element attributes (#​32871)
  • Correct filename in example (#​33000)
  • Add more information about using useRoute and accessing route in middleware (#​33004)
  • Avoid variable shadowing in locale example (#​33031)
🏡 Chore
  • Remove stray test file (42fd247a4)
  • Ignore webpagetest.org when scanning links (cb18f4960)
  • Add type: 'module' in playground (#​33099)
✅ Tests
  • Add failing test for link component duplication (#​32792)
  • Simplify module hook tests (#​32950)
  • Refactor stubbing of import.meta.dev (#​33023)
  • Use findWorkspaceDir rather than relative paths to repo root (c4c3ada96)
  • Improve router test for global transitions (7e6a6fc35)
  • Use expect.poll (f4354203a)
  • Use expect.poll instead of expectWithPolling (15ca5be95)
  • Use vi.waitUntil instead of custom retry logic (4c8c13090)
  • Update test for app creation (9a3b44515)
  • Update bundle size snapshot (76988ce97)
🤖 CI
  • Remove double set of tests for docs prs (14c006ac4)
  • Add workflow for discord team discussion threads (f14854fc3)
  • Fix some syntax issues with discord + github integrations (c059f7cd1)
  • Use token for adding issue to project (51661bac3)
  • Use discord bot to create thread automatically (37f9eb27b)
  • Only use discord bot (38ce2dcbb)
  • Update format of discord message (0047b3059)
  • Try bolding entire line (6e9f40eb9)
  • Oops (8b044cad2)
  • Add delay after adding each reaction (37b7e2108)
  • Use last lts node version for testing (98719c065)
  • Try npm trusted publisher (ea33502c3)
  • Use npm trusted publisher for main releases (31a55437f)
  • Change wording (#​32979)
  • Add github ai moderator (#​33077)
❤️ Contributors

v3.18.1

Compare Source

3.18.1 is a regularly scheduled patch release.

👉 Changelog

compare changes

🔥 Performance
  • kit: Get absolute path from tinyglobby in resolveFiles (#​32846)
🩹 Fixes
  • nuxt: Do not throw undefined error variable (#​32807)
  • vite: Include tsconfig references during typeCheck (#​32835)
  • nuxt: Add sourcemap path transformation for client builds (#​32313)
  • nuxt: Add warning for lazy-hydration missing prefix (#​32832)
  • nuxt: Trigger call once navigation even when no suspense (#​32827)
  • webpack: Handle null result from webpack call (65aa17158)
  • kit,nuxt: Use reverseResolveAlias for better errors (#​32853)
📖 Documentation
  • Update nightly version references (#​32776)
  • Improve explanation of global middleware (#​32855)
🏡 Chore
✅ Tests
  • Move tests for defineNuxtComponent out of e2e test (#​32848)
🤖 CI
  • Move nightly releases into different concurrency group (26f9baa6a)
❤️ Contributors

v3.18.0

Compare Source

3.18.0 is the next minor release.

👀 Highlights

A huge thank you to everyone who's been a part of this release, which is mostly about backporting features + bugfixes from Nuxt v4.

Over the next six months, we'll continue backporting compatible v4 features and bug fixes, so please keep the feedback coming! ❤️

🧪 Lazy Hydration Macros

Building on the delayed hydration support from v3.16, we now support lazy hydration macros (#​31192)! These provide a more ergonomic way to control component hydration:

<script setup lang="ts"> const LazyHydrationMyComponent = defineLazyHydrationComponent(  'visible',  () => import('./components/MyComponent.vue') ) </script> <template> <div> <!--   Hydration will be triggered when  the element(s) is 100px away from entering the viewport.  --> <LazyHydrationMyComponent :hydrate-on-visible="{ rootMargin: '100px' }" /> </div> </template>

These macros make it possible to use Nuxt's lazy hydration utilities alongside explicit component imports.

♿️ Accessibility Improvements

We've enhanced accessibility by including <NuxtRouteAnnouncer> in the built-in app.vue (#​32621). This means page changes will be announced to screen readers, making navigation more accessible for users with visual impairments. (This only applies if you do not have an app.vue in your project. If you do, please keep <NuxtRouteAnnouncer> in your app.vue!)

🛠️ Enhanced Development Experience
Chrome DevTools Workspace Integration

We've added Chrome DevTools workspace integration (#​32084), allowing you to edit your Nuxt source files directly from Chrome DevTools. This creates a better debugging experience where changes made in DevTools are reflected in your actual source files.

Better Component Type Safety

Component type safety has been improved with:

  • Typed slots for <ClientOnly> and <DevOnly> (#​32707) - better IntelliSense and error checking
  • Exported <NuxtTime> prop types (#​32547) - easier to extend and customize
New Auto-Import: onWatcherCleanup

The onWatcherCleanup function from vue is now available as an auto-import (#​32396), making it easier to clean up watchers and prevent memory leaks:

const { data } = useAsyncData('users', fetchUsers) watch(data, (newData) => { const interval = setInterval(() => { // Some periodic task }, 1000) // Clean up when the watcher is stopped onWatcherCleanup(() => { clearInterval(interval) }) })
📊 Observability Enhancements

Page routes are now exposed to Nitro for observability (#​32617), enabling better monitoring and analytics integration with supported platforms. This allows observability tools to track page-level metrics more effectively.

🔧 Module Development Improvements

Module authors get several quality-of-life improvements:

Simplified Server Imports

The addServerImports kit utility now supports single imports (#​32289), making it easier to add individual server utilities:

// Before: had to wrap in array addServerImports([{ from: 'my-package', name: 'myUtility' }]) // Now: can pass directly addServerImports({ from: 'my-package', name: 'myUtility' })
TypeScript Configuration

Modules can now add to typescript.hoist (#​32601), giving them more control over TypeScript configuration and type generation.

⚡️ Performance Improvements

We've made several performance optimizations:

  • Improved Vite-node communication via internal socket (#​32417) for faster development builds
  • Migration to oxc-walker (#​32250) and oxc for onPrehydrate transforms (#​32045) for faster code transformations
🐛 Bug Fixes

This release also includes several important fixes:

  • Improved data fetching: When computed keys change, old data is now properly retained (#​32616)
  • Better scroll behavior: scrollBehaviorType is now only used for hash scrolling (#​32622)
  • Fixed directory aliases: Added trailing slashes to some directory aliases for better consistency (#​32755)
✅ Upgrading

As usual, our recommendation for upgrading is to run:

npx nuxi@latest upgrade --dedupe

This refreshes your lockfile and pulls in all the latest dependencies that Nuxt relies on, especially from the unjs ecosystem.

👉 Changelog

compare changes

🚀 Enhancements
  • nuxt: Expose page routes to nitro for o11y (#​32617)
  • nuxt: Export <NuxtTime> prop types (#​32547)
  • nuxt: Add integration with chrome devtools workspaces (#​32084)
  • kit: Support single import in addServerImports (#​32289)
  • nuxt: Add onWatcherCleanup to imports presets (#​32396)
  • nuxt: Add route announcer to default app.vue (#​32621)
  • nuxt: Support lazy hydration macros (#​31192)
🔥 Performance
  • vite: Communicate with vite-node via internal socket (#​32417)
  • kit: Update env expansion regex to match nitro (#​30766)
🩹 Fixes
  • nuxt: Allow modules to add to typescript.hoist (#​32601)
  • nuxt: Retain old data when computed key changes (#​32616)
  • nuxt: Only use scrollBehaviorType for hash scrolling (#​32622)
  • nuxt: Add missing async (fd312af03)
  • nuxt: Fix transform/minify types + bump oxc-transform (d2ba19963)
  • nuxt: Provide typed slots for <ClientOnly> and <DevOnly> (#​32707)
  • kit,nuxt,schema: Add trailing slash to some dir aliases (#​32755)
  • nuxt: Include source base url for remote islands (#​32772)
  • vite: Use vite node server to transform requests (#​32791)
  • kit: Use mlly to parse module paths (#​32386)
  • nuxt: Execute all plugins after error rendering error.vue (#​32744)
💅 Refactors
  • nuxt: Migrate to oxc-walker (#​32250)
  • nuxt,schema: Use oxc for onPrehydrate transform (#​32045)
  • nuxt: Pass file language directly to parser options (#​32665)
  • nuxt: Use direct import of installNuxtModule (228e3585e)
📖 Documentation
  • Pass v3 template to create nuxt examples (03182202f)
  • Add reference to useNuxtData in data fetching composable pages (#​32589)
  • Document the --modules flag in the init command (#​32599)
  • Added new Shared folder to the example of v4 folder structure (#​32630)
  • Improve grammar (#​32640)
  • Typos (#​32567)
  • Fix abbreviation (#​32613)
  • Reference noUncheckedIndexedAccess rule change in v4 guide (#​32643)
  • Fix links to Nitro docs (#​32691)
  • Add best practices section (#​31609)
  • Correct alias for local fonts in styling guide (#​32680)
  • Update nuxt.new links to v4 (#​32639)
  • Set correct default value for deep option in usefetch (#​32724)
  • Fix link to issue (ca03f533f)
  • Add AI-assisted contribution guidelines (#​32725)
  • Update Nuxt installation command to use npm create nuxt@latest (#​32726)
  • Hydration best practice (#​32746)
  • Add example for module .with() (#​32757)
  • Replace dead Vue Router docs links (#​32779)
🏡 Chore
  • Handle missing commit details (0af98763d)
  • Update reproduction links for bug-report template (#​32722)
  • Update unbuild and use absolute path in dev stubs (#​32759)
✅ Tests
🤖 CI
  • Trigger website redeploy on main branch (#​32695)
  • Release pkg.pr.new for main/3.x branches as well (ca4f0b1da)
  • Apply 3x tag to latest v3 release (5e8dfc150)
❤️ Contributors

Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

  • If you want to rebase/retry this PR, check this box

This PR was generated by Mend Renovate. View the repository job log.
@renovate renovate bot force-pushed the renovate/npm-nuxt-vulnerability branch from a0afb33 to 8d228d9 Compare September 25, 2025 21:09
@renovate renovate bot force-pushed the renovate/npm-nuxt-vulnerability branch from db1b55b to 5ff0996 Compare October 15, 2025 13:22
@renovate renovate bot force-pushed the renovate/npm-nuxt-vulnerability branch from 5ff0996 to 5e56fe6 Compare October 21, 2025 16:48
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