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    CVE-2026-45670

    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 / rspack builder if the dev server is bound to a non-loopback address (e.g. nuxt dev --host) and the developer opens a malicious site on the same network. This issue has been patched in versions 3.21.6 and 4.4.6.

    Published:Jun 12, 2026
    Last Modified:Jun 15, 2026
    EPS:Jun 12, 2026
    EPSS Score:0.00163
    CVSS Score:5.4

    Affected Products

    Vendor
    Nuxt
    Product
    Nuxt
    Vendor
    Nuxt
    Product
    Nuxt\/rspack-builder
    Vendor
    Nuxt
    Product
    Nuxt\/webpack-builder

    Exploits

    https://github.com/nuxt/nuxt/security/advisories/GHSA-4gf7-ff8x-hq99https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2ghttps://github.com/nuxt/nuxt/security/advisories/GHSA-4gf7-ff8x-hq99https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-500 WebView Injection

    Related CVEs

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High