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

影響: npm:nuxt >= 4.0.0, < 4.4.4 → 4.4.4, npm:nuxt >= 3.11.0, < 3.21.4 → 3.21.4

Nuxt compared routeRules keys against the raw request path, without decoding percent-encoding, while the router decodes parameters when it resolves a route. A request whose path is percent-encoded can therefore resolve to a page while failing to match the route rule meant to protect it, so the rule's appMiddleware never runs, including during server rendering. Impact For a page served through a dynamic or catch-all route, an attacker can percent-encode a character in the path to skip the rule:…

Read on GitHub Advisory Database

On 10/23/2026, 01:50 AM, GitHub Advisory Database published "Nuxt: Route rules are matched against the raw request path, so a percent-encoded segment can bypass `appMiddleware` on dynamic and catch-all routes" (type: Advisory). Severity is "Medium" (medium). Related technologies: JavaScript / Node.js, Nuxt. CVE: CVE-2026-114131.