CVE-2026-71320: Nuxt

High severity, CVSS 8.1. EPSS: 0.7% chance of exploitation in the next 30 days.

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 /__nuxt_island/ props into a dynamic component when `vue.runtimeCompiler: true` is enabled, causing template execution in the Nitro process. This issue is fixed in 3.21.10 and 4.5.1.

Affected products

• Nuxt Nuxt: from 4.0.0, before 4.5.1 (fixed in 4.5.1); from 3.4.0, before 3.21.10 (fixed in 3.21.10)

Published 2026-08-05. Last modified 2026-09-08.