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CVE-2026-46342

MEDIUM CVSS: 5.4 Published: 2026-06-12 Modified: 2026-06-17

Description

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 /__nuxt_island/* 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 the same path can return materially different responses depending on the query. This issue has been patched in versions 3.21.6 and 4.4.6.

Affected Platforms

Nuxt NuxtNuxt Nuxt\/Nitro-Server

Weakness Type

CWE-79, CWE-349, CWE-444

References