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CVE-2026-114131

CVE-2026-114131 · Nuxt: Route rules are matched against the raw request path, so a percent-encoded segment can bypass `appMiddleware` on dynamic and catch-all routes

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Nuxt is an open-source web development framework for Vue.js. From 3.11.0 until 3.21.4 and 4.4.4, Nuxt compares route-rule keys with the raw request path while route resolution decodes dynamic and catch-all parameters, allowing a percent-encoded segment to resolve to a protected page without matching the routeRules entry intended for that path. As a result, appMiddleware can be skipped during server rendering and an unauthenticated requester can receive the gated page and its SSR data. The same mismatch affects app-manifest rules including redirect, appLayout, ssr, prerender, and payload flags derived from cache, isr, and swr. This vulnerability is fixed in 4.4.4 and 3.21.4.

CVSS 6.5 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • nuxt

    Versions
    • >= 4.0.0, < 4.4.4: Affected
    • >= 3.11.0, < 3.21.4: Affected

    No fix published

  • nuxt npm

    Affected ranges
    • SEMVER: ≥ 4.0.0, < 4.4.4

    Update to 4.4.4

  • nuxt npm

    Affected ranges
    • SEMVER: ≥ 3.11.0, < 3.21.4

    Update to 3.21.4

Original sources

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