CVE-2026-114132 Nuxt: Server-side route rules (`redirect`, `headers`, `proxy`, `ssr`) are skipped for case-variant paths when routing is case-insensitive
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-114132?
CVE-2026-114132 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. Prior to 4.6.2, Nuxt resolves pages case-insensitively by default while Nitro matches server-side route-rule keys case-sensitively, allowing a request whose path differs only by letter case to render without the server rule intended for that page. The mismatch can skip redirect, headers, proxy, ssr: false, and noScripts, and can cause getRouteRules(event) and matchRouteRules to return no rule for the case variant. Applications that set router.options.sensitive: true in nuxt.config are not affected; setting sensitive only in app/router.options.ts does not establish this exclusion because the server follows the nuxt.config value. Access checks implemented in server middleware, page route middleware, or page data fetching remain independent of this matcher. This issue is fixed in version 4.6.2.
Which versions are affected by CVE-2026-114132?
8 open source packages ship an affected version, including @nuxt/nitro-server and nuxt.
| Package | Affected | Fixed in |
|---|---|---|
@nuxt/nitro-server npm | From 3.20.0 | None |
@nuxt/nitro-server npm | From 3.20.0 | None |
@nuxt/nitro-server npm | From 4.2.0 | 4.6.2 |
@nuxt/nitro-server npm | From 4.2.0 | 4.6.2 |
nuxt npm | From 3.0.0 | None |
nuxt npm | From 3.0.0 | None |
2 more packages
nuxt npm | From 4.0.0 | 4.6.2 |
nuxt npm | From 4.0.0 | 4.6.2 |
How do I fix CVE-2026-114132?
Upgrade @nuxt/nitro-server to 4.6.2 or later.
Is CVE-2026-114132 being exploited?
There is no known exploitation of CVE-2026-114132 in the wild and no public exploit code.
Sources
Also known as CLSA-2026-1793181427, CLSA-2026-1793181586, CLSA-2026-1793181946, CLSA-2026-1793182024, GHSA-vjh5-4x84-xrqp.