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

Descripción

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.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• https://github.com/nuxt/nuxt/security/advisories/GHSA-6gq8-jgmh-3ffp
• https://github.com/nuxt/nuxt/commit/81f86ac5ee82bb1a9b887e59f3bc84624d711497
• https://github.com/nuxt/nuxt/commit/9123ed850c468a7424a868c20d0d49a5507d32e5
• https://github.com/nuxt/nuxt/releases/tag/v3.21.11
• https://github.com/nuxt/nuxt/releases/tag/v4.5.2