CVE-2026-49993

MEDIUM

Nuxt Builders >=3.15.4,<3.21.7 and >=4.0.0,<4.4.7 - Source Code Disclosure

Title source: manual
STIX 2.1

Description

Nuxt is an open-source web development framework for Vue.js. In @nuxt/rspack-builder and @nuxt/webpack-builder from versions 3.15.4 to before 3.21.7 and 4.0.0 to before 4.4.7, there is an incomplete fix for GHSA-6m52-m754-pw2g. Source code may still 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 3.21.7 and 4.4.7.

References (5)

Core 5

Scores

CVSS v3 5.7
EPSS 0.0020
EPSS Percentile 10.0%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-749
Status published
Products (8)
nuxt/nuxt >= 3.15.4, < 3.21.7
nuxt/nuxt >= 4.0.0, < 4.4.7
nuxt/nuxt\/rspack-builder 3.15.4 - 3.21.7
nuxt/nuxt\/webpack-builder 3.15.4 - 3.21.7
nuxt/rspack-builder 3.15.4 - 3.21.7npm
nuxt/rspack-builder 4.0.0 - 4.4.7npm
nuxt/webpack-builder 3.15.4 - 3.21.7npm
nuxt/webpack-builder 4.0.0 - 4.4.7npm
Published Jun 12, 2026
Tracked Since Jun 12, 2026