CVE-2026-45669 Nuxt: Reflected XSS in `navigateTo()` external redirect

Nuxt is an open-source web development framework for Vue.js. From versions 3.4.3 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, navigateTo with external: true generates a server-side HTML redirect body containing a tag. The destination URL is only sanitized by replacing " with %22, leaving ,...

EUVD-2026-36419

Nuxt is an open-source web development framework for Vue.js. In @nuxt/rspack-builder and @nuxt/webpack-builder versions 3.15.4 to before 3.21.6, and 4.0.0-alpha.1 to before 4.4.6, there is an incomplete fix for GHSA-4gf7-ff8x-hq99. Source code may be stolen during dev when using the webpack /...

CVE-2026-45670

Summary (CVE-2026-45670) Nuxt.js dev-server exposure issue affects @nuxt/webpack-builder and @nuxt/rspack-builder. An incomplete fix for GHSA-4gf7-ff8x-hq99 allowed source-code leakage when the dev server is bound to a non-loopback address (for example, nuxt dev --host) and a user visits a malici...

CVE-2026-45670 Nuxt: Dev server exposes built source over LAN to malicious sites (incomplete fix for GHSA-4gf7-ff8x-hq99)

Nuxt is an open-source web development framework for Vue.js. In @nuxt/rspack-builder and @nuxt/webpack-builder versions 3.15.4 to before 3.21.6, and 4.0.0-alpha.1 to before 4.4.6, there is an incomplete fix for GHSA-4gf7-ff8x-hq99. Source code may be stolen during dev when using the webpack /...

CVE-2026-45670 Nuxt: Dev server exposes built source over LAN to malicious sites (incomplete fix for GHSA-4gf7-ff8x-hq99)

Nuxt is an open-source web development framework for Vue.js. In @nuxt/rspack-builder and @nuxt/webpack-builder versions 3.15.4 to before 3.21.6, and 4.0.0-alpha.1 to before 4.4.6, there is an incomplete fix for GHSA-4gf7-ff8x-hq99. Source code may be stolen during dev when using the webpack /...

CVE-2026-45670 Nuxt: Dev server exposes built source over LAN to malicious sites (incomplete fix for GHSA-4gf7-ff8x-hq99)

Nuxt is an open-source web development framework for Vue.js. In @nuxt/rspack-builder and @nuxt/webpack-builder versions 3.15.4 to before 3.21.6, and 4.0.0-alpha.1 to before 4.4.6, there is an incomplete fix for GHSA-4gf7-ff8x-hq99. Source code may be stolen during dev when using the webpack /...

EUVD-2026-36418

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...

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...

CVE-2026-53721: Improper Handling of Case Sensitivity

Nuxt is an open-source web development framework for Vue.js. From versions 3.11.0 to before 3.21.7 and 4.0.0 to before 4.4.7, there is a route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher. This issue has been patched in versions 3.21.7 and 4.4...

CVE-2026-45670: Exposed Dangerous Method or Function

Nuxt is an open-source web development framework for Vue.js. In @nuxt/rspack-builder and @nuxt/webpack-builder versions 3.15.4 to before 3.21.6, and 4.0.0-alpha.1 to before 4.4.6, there is an incomplete fix for GHSA-4gf7-ff8x-hq99. Source code may be stolen during dev when using the webpack /...

PT-2026-48880

Name of the Vulnerable Software and Affected Versions Nuxt versions 3.11.0 through 3.21.6 Nuxt versions 4.0.0 through 4.4.6 Description A route-rule middleware bypass exists due to a case-sensitivity mismatch between vue-router and the routeRules matcher. While vue-router matches paths...

CVE-2026-45669: Improper Neutralization of Script in Attributes in a Web Page

Nuxt is an open-source web development framework for Vue.js. From versions 3.4.3 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, navigateTo with external: true generates a server-side HTML redirect body containing a tag. The destination URL is only sanitized by replacing " with %22, leaving ,...

PT-2026-48881

Name of the Vulnerable Software and Affected Versions Nuxt versions prior to 3.21.7 Nuxt versions prior to 4.4.7 Description The component fails to validate the URL scheme of values bound to its to or href props before rendering them into the href attribute of the underlying element. If an...

CVE-2026-53722: Improper Neutralization of Input During Web Page Generation

Nuxt is an open-source web development framework for Vue.js. Prior to versions 3.21.7 and 4.4.7, did not validate the URL scheme of values bound to its to or href props before rendering them into the href attribute of the underlying element. When an application binds attacker-controlled input a...

CVE-2026-46342: Improper Neutralization of Input During Web Page Generation

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-2026-47200: Improper Access Control

Nuxt is an open-source web development framework for Vue.js. In Nuxt versions 3.11.0 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, when experimental.componentIslands is enabled default in Nuxt 4, any...

PT-2026-48868

Name of the Vulnerable Software and Affected Versions @nuxt/rspack-builder versions 3.15.4 through 3.21.6 @nuxt/rspack-builder versions 4.0.0 through 4.4.6 @nuxt/webpack-builder versions 3.15.4 through 3.21.6 @nuxt/webpack-builder versions 4.0.0 through 4.4.6 Description An incomplete fix in the...