Medium 6.5Published Oct 21, 2026

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

Updated under an hour ago (Oct 28, 2026, 2:40 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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 (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness (CWE): CWE-436, CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 21, 2026

Affected products

Affected products

nuxt nuxt nuxt:nuxt (from the name)	from 4.0.0, < 4.4.4; from 3.11.0, < 3.21.4	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.