Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- 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
- https://github.com/nuxt/nuxt/security/advisories/GHSA-6gq8-jgmh-3ffp
FAQ
What is CVE-2026-114131?
CVE-2026-114131 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 catc...
How severe is CVE-2026-114131?
CVE-2026-114131 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-114131?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.