CVE-2026-71320
Received Received - Intake

Template Injection in Nuxt.js Framework

Vulnerability report for CVE-2026-71320, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-05

Last updated on: 2026-08-05

Assigner: GitHub, Inc.

Description

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.

CVSS Scores

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Meta Information

Published
2026-08-05
Last Modified
2026-08-05
Generated
2026-08-06
AI Q&A
2026-08-06
EPSS Evaluated
N/A
NVD

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
nuxt nuxt From 3.4.0 (inc) to 3.21.10 (inc)
nuxt nuxt 4.5.1

Helpful Resources

Exploitability

CWE
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KEV
KEV Icon
CWE ID Description
CWE-94 The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
CWE-74 The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Attack-Flow Graph

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Executive Summary

This vulnerability in Nuxt.js allows an attacker to inject a template key into dynamic components via /__nuxt_island/ props when vue.runtimeCompiler is enabled. This causes template execution in the Nitro process, potentially leading to unauthorized code execution or data access.

Detection Guidance

Check Nuxt.js version with npm list nuxt or grep "nuxt" package.json. Vulnerable versions are between 3.4.0-3.21.9 and 4.0.0-4.5.0. Verify if vue.runtimeCompiler is set to true in Nuxt config.

Impact Analysis

An attacker could exploit this to execute arbitrary code, steal sensitive data, or perform actions on your system with the same privileges as the Nitro process. This could lead to data breaches, unauthorized modifications, or service disruption.

Compliance Impact

This vulnerability could lead to unauthorized access or exposure of personal or health data, violating GDPR and HIPAA requirements. Organizations may face legal penalties, fines, or reputational damage due to non-compliance.

Mitigation Strategies

Upgrade Nuxt.js to version 3.21.10 or 4.5.1 or later. If using vue.runtimeCompiler: true, disable it or set to false in Nuxt config. Review dynamic components using /__nuxt_island/ props for suspicious activity.

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EPSS Chart