CVE-2026-46342 Nuxt: `__nuxt_island` endpoint does not bind responses to request props, enabling shared-cache poisoning

Nuxt is an open-source web development framework for Vue.js. In Nuxt versions 3.1.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6 and @nuxt/nitro-server versions 3.20.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, the /nuxtisland/ endpoint accepts attacker-controlled props query/body...

HTTP Request Smuggling

Overview Affected versions of this package are vulnerable to HTTP Request Smuggling via the nuxtisland endpoint when responses are not properly bound to request props, allowing shared-cache poisoning. An attacker can cause users to receive attacker-controlled HTML by priming a shared cache with...

HTTP Request Smuggling

Overview @nuxt/nitro-server is a Nitro server integration for Nuxt Affected versions of this package are vulnerable to HTTP Request Smuggling via the nuxtisland endpoint when responses are not properly bound to request props, allowing shared-cache poisoning. An attacker can cause users to receive...