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
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-114131?
CVE-2026-114131 is a medium-severity vulnerability in nuxt, published on 21 Oct 2026.
Official description
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.
Which versions are affected by CVE-2026-114131?
4 open source packages ship an affected version, including nuxt.
| Package | Affected | Fixed in |
|---|---|---|
nuxt npm | From 3.11.0 | 3.21.4 |
nuxt npm | From 3.11.0 | 3.21.4 |
nuxt npm | From 4.0.0 | 4.4.4 |
nuxt npm | From 4.0.0 | 4.4.4 |
How do I fix CVE-2026-114131?
Upgrade nuxt to a fixed version for your release line: 3.21.4 or 4.4.4.
Is CVE-2026-114131 being exploited?
There is no known exploitation of CVE-2026-114131 in the wild and no public exploit code.
Sources
Also known as GHSA-6gq8-jgmh-3ffp.