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.
History

Mon, 15 Jun 2026 18:15:00 +0000

Type Values Removed Values Added
First Time appeared Nuxt nuxt\/rspack-builder
Nuxt nuxt\/webpack-builder
CPEs cpe:2.3:a:nuxt:nuxt\/rspack-builder:*:*:*:*:*:node.js:*:*
cpe:2.3:a:nuxt:nuxt\/webpack-builder:*:*:*:*:*:node.js:*:*
Vendors & Products Nuxt nuxt\/rspack-builder
Nuxt nuxt\/webpack-builder
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}


Fri, 12 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 12 Jun 2026 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Nuxt
Nuxt nuxt
Vendors & Products Nuxt
Nuxt nuxt

Fri, 12 Jun 2026 13:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Nuxt: Dev server exposes built source over LAN to malicious sites (incomplete fix for GHSA-4gf7-ff8x-hq99)
Weaknesses CWE-749
References
Metrics cvssV4_0

{'score': 5.9, 'vector': 'CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-06-12T12:51:16.156Z

Updated: 2026-06-12T14:18:09.794Z

Reserved: 2026-05-12T21:59:25.666Z

Link: CVE-2026-45670

cve-icon Vulnrichment

Updated: 2026-06-12T14:17:11.165Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-12T14:16:31.443

Modified: 2026-06-15T18:08:40.180

Link: CVE-2026-45670

cve-icon Redhat

No data.