npm: Nuxt server islands render `useHeadSafe` input without sanitisation

npm: Nuxt server islands render useHeadSafe input without sanitisation vulnerability discovered by ? in WordPress npm nuxt versions = 3.13.0, 4.6.2...

EUVD-2026-107417

Nuxt server islands render useHeadSafe input without sanitisation...

CVE-2026-114133

Nuxt is an open-source web development framework for Vue.js. From 3.13.0 until 4.6.2, the server-island renderer serializes raw useHeadSafe entry input into the island response without preserving the safe-input marker, and NuxtIsland later inserts that input into the page head as an ordinary entr...

CVE-2026-114133 Nuxt server islands render `useHeadSafe` input without sanitisation

Nuxt is an open-source web development framework for Vue.js. From 3.13.0 until 4.6.2, the server-island renderer serializes raw useHeadSafe entry input into the island response without preserving the safe-input marker, and NuxtIsland later inserts that input into the page head as an ordinary entr...

CVE-2026-114133

The Nuxt web development framework (versions 3.13.0 through 4.6.2 ) contains a vulnerability where the server-island renderer serializes raw useHeadSafe entry input into the island response without preserving the safe-input marker. This causes NuxtIsland to subsequently insert that input into the...

PT-2026-120736

Name of the Vulnerable Software and Affected Versions Nuxt versions 3.13.0 through 4.6.1 Description The server-island renderer serializes raw useHeadSafe entry input into the island response without preserving the safe-input marker. Subsequently, NuxtIsland inserts this input into the page head ...

CVE-2026-39315 Unhead has a hasDangerousProtocol() bypass via leading-zero padded HTML entities in useHeadSafe()

Unhead is a document head and template manager. Prior to 2.1.13, useHeadSafe is the composable that Nuxt's own documentation explicitly recommends for rendering user-supplied content in safely. Internally, the hasDangerousProtocol function in packages/unhead/src/plugins/safe.ts decodes HTML...

CVE-2026-39315

Unhead is a document head and template manager. Prior to 2.1.13, useHeadSafe is the composable that Nuxt's own documentation explicitly recommends for rendering user-supplied content in...

CVE-2026-39315 Unhead has a hasDangerousProtocol() bypass via leading-zero padded HTML entities in useHeadSafe()

Unhead is a document head and template manager. Prior to 2.1.13, useHeadSafe is the composable that Nuxt's own documentation explicitly recommends for rendering user-supplied content in safely. Internally, the hasDangerousProtocol function in packages/unhead/src/plugins/safe.ts decodes HTML...

CVE-2026-31860 Unhead has a XSS bypass in `useHeadSafe` via attribute name injection and case-sensitive protocol check

Unhead is a document head and template manager. Prior to 2.1.11, useHeadSafe can be bypassed to inject arbitrary HTML attributes, including event handlers, into SSR-rendered tags. This is the composable that Nuxt docs recommend for safely handling user-generated content. The acceptDataAttrs...

GHSA-G5XX-PWRP-G3FV Unhead has XSS bypass in `useHeadSafe` via attribute name injection and case-sensitive protocol check

Summary useHeadSafe can be bypassed to inject arbitrary HTML attributes, including event handlers, into SSR-rendered tags. This is the composable that Nuxt docs recommend for safely handling user-generated content. Details XSS via data- attribute name injection The acceptDataAttrs function safe.t...

CVE-2026-31860: Improper Neutralization of Input During Web Page Generation

Unhead is a document head and template manager. Prior to 2.1.11, useHeadSafe can be bypassed to inject arbitrary HTML attributes, including event handlers, into SSR-rendered tags. This is the composable that Nuxt docs recommend for safely handling user-generated content. The acceptDataAttrs...