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CVE-2026-114131medium6.5

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

Impact

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…

Source excerpt · GitHub_M

Affected packages

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Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

nuxt · GitHub_M

nuxt

2 ranges
GitHub_M version evidence

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affected

>= 4.0.0, < 4.4.4

>= 3.11.0, < 3.21.4

unaffected

unknown

Other versions: unknown

Original source 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.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

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Original records

CVE-2026-114131

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-436 ↗

CWE-436: Interpretation Conflict

GitHub_M

Related →
CWE-863 ↗

CWE-863: Incorrect Authorization

GitHub_M

Related →
Contributing organizations · 2
GitHub_M

Assigning organization

2026-10-21
CISA-ADP

Additional data publisher

2026-10-30

What changed

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References

5 sources
github.com/nuxt/nuxt/security/advisories/GHSA-6gq8-jgmh-3ffp
Security advisoryGitHub_M
github.com/nuxt/nuxt/commit/81f86ac5ee82bb1a9b887e59f3bc84624d711497
PatchGitHub_M
github.com/nuxt/nuxt/commit/9123ed850c468a7424a868c20d0d49a5507d32e5
PatchGitHub_M
github.com/nuxt/nuxt/releases/tag/v3.21.11
Release notesGitHub_M
github.com/nuxt/nuxt/releases/tag/v4.5.2
Release notesGitHub_M