CVE-2026-71318

Nuxt is an open-source web development framework for Vue.js. From 3.1.0 until 3.21.10 and 4.5.1, an attacker can supply a top-level as prop to the /nuxtisland/ endpoint and drive dynamic component resolution through , resolveDynamicComponent, or h. This issue is fixed in 3.21.10 and 4.5.1...

CVE-2026-71320

Nuxt is an open-source web development framework for Vue.js. From 3.4.0 until 3.21.10 and 4.5.1, an attacker can inject a template key through /nuxtisland/ props into a dynamic component when vue.runtimeCompiler: true is enabled, causing template execution in the Nitro process. This issue is fixe...

GHSA-9PGF-384G-P7MV Nuxt: Unauthenticated CPU exhaustion parsing and hashing the Nuxt island endpoint body before hash validation

Impact The internal island renderer endpoint /nuxtisland/... decodes and hashes attacker-controlled request input before it validates the URL-resident hash. An unauthenticated POST /nuxtisland/.json with a large JSON body for example 4.6 MB / 150k keys is fully read, destr-parsed, and run through...

CVE-2026-71321 Nuxt: Unauthenticated CPU exhaustion parsing and hashing the Nuxt island endpoint body before hash validation

Nuxt is an open-source web development framework for Vue.js. From 3.1.0 until 3.21.10 and 4.5.1, the internal island renderer endpoint /nuxtisland/... decodes and hashes attacker-controlled JSON body input with destr and ohash before validating the URL-resident hash. An unauthenticated POST...

CVE-2026-71318 Nuxt: Unauthorized Component Instantiation via Server Island Props

Nuxt is an open-source web development framework for Vue.js. From 3.1.0 until 3.21.10 and 4.5.1, an attacker can supply a top-level as prop to the /nuxtisland/ endpoint and drive dynamic component resolution through , resolveDynamicComponent, or h. This issue is fixed in 3.21.10 and 4.5.1...

GHSA-HXCR-HM88-MPQ6 Nuxt: Unauthenticated out-of-memory crash via unbounded v-for expansion in island rendering

Impact An unauthenticated attacker can crash a Nuxt server that renders any island / server component containing a v-for over a prop for example v-for="n in count" or a . Because the island URL hash is a non-secret digest of the request, the attacker can compute a valid hash for arbitrary props a...

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...

CVE-2026-46342

Nuxt (Vue.js framework) versions 3.1.0–3.21.5 and 4.0.0-alpha.1–4.4.5 are affected by CVE-2026-46342 due to the /__nuxt_island/* endpoint not binding responses to the request props, allowing attacker-controlled props to influence island component rendering via an unverified URL-resident hash. Thi...

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...

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...

PT-2026-45028

Name of the Vulnerable Software and Affected Versions Nuxt versions 3.11.0 through 3.21.5 Nuxt versions 4.0.0-alpha.1 through 4.4.5 @nuxt/nitro-server versions 3.20.0 through 3.21.5 @nuxt/nitro-server versions 4.0.0-alpha.1 through 4.4.5 Description When experimental.componentIslands is enabled,...

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

Summary The /nuxtisland/ endpoint accepts attacker-controlled props query/body parameters and renders any island component without verifying that the URL-resident hash .json was actually issued for those inputs by . The hash is computed and embedded client-side but never validated server-side, so...

GHSA-G8WJ-3CR3-6W7V Nuxt: `__nuxt_island` endpoint does not bind responses to request props, enabling shared-cache poisoning

Summary The /nuxtisland/ endpoint accepts attacker-controlled props query/body parameters and renders any island component without verifying that the URL-resident hash .json was actually issued for those inputs by . The hash is computed and embedded client-side but never validated server-side, so...

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

NPM: Nuxt: nuxtisland endpoint does not bind responses to request props, enabling shared-cache poisoning vulnerability discovered by ? in WordPress Npm nuxt versions = 3.1.0, = 3.21.5...

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...

PT-2026-42038

Name of the Vulnerable Software and Affected Versions Nuxt versions 3.1.0 through 3.21.5 Nuxt versions 4.0.0-alpha.1 through 4.4.5 @nuxt/nitro-server versions 3.20.0 through 3.21.5 @nuxt/nitro-server versions 4.0.0-alpha.1 through 4.4.5 Description The '/ nuxt island/' endpoint accepts...

Client-Side Path Traversal

Nuxt is vulnerable to Client-Side Path Traversal. The vulnerability is due to improper validation of user-controlled data within the Island payload revival mechanism, which allows an attacker to craft malicious nuxtisland objects that manipulate client-side requests to arbitrary endpoints within...

Nuxt has Client-Side Path Traversal in Nuxt Island Payload Revival

Summary A client-side path traversal vulnerability in Nuxt's Island payload revival mechanism allowed attackers to manipulate client-side requests to different endpoints within the same application domain when specific prerendering conditions are met. Technical Details The vulnerability occurs in...

GHSA-P6JQ-8VC4-79F6 Nuxt has Client-Side Path Traversal in Nuxt Island Payload Revival

Summary A client-side path traversal vulnerability in Nuxt's Island payload revival mechanism allowed attackers to manipulate client-side requests to different endpoints within the same application domain when specific prerendering conditions are met. Technical Details The vulnerability occurs in...

CVE-2025-59414

Nuxt is an open-source web development framework for Vue.js. Prior to 3.19.0 and 4.1.0, A client-side path traversal vulnerability in Nuxt's Island payload revival mechanism allowed attackers to manipulate client-side requests to different endpoints within the same application domain when specifi...