CVE-2026-49993

MEDIUM EPSS 19.8%
Published Jun 12, 20262w ago · Modified Jun 17, 20261w ago
5.9 CVSS 4.0
Medium
Find Similar
Published Jun 12, 2026 2w ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.9
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Adjacent
Attack Complexity High
Privileges Required None
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
19.8% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-749

Affected Products 4

VendorProductVersionRange
nuxtnuxt\/rspack-builder*≥3.15.4  –  <3.21.7
nuxtnuxt\/rspack-builder*≥4.0.0  –  <4.4.7
nuxtnuxt\/webpack-builder*≥3.15.4  –  <3.21.7
nuxtnuxt\/webpack-builder*≥4.0.0  –  <4.4.7

References 5

  • github.com https://github.com/nuxt/nuxt/commit/77187ee4015e9267fb464951542a3e09e8b5fa05
    Patch
  • github.com https://github.com/nuxt/nuxt/commit/e351de943e82db16970618b60dc7fdbaa58630f3
    Patch
  • github.com https://github.com/nuxt/nuxt/pull/35200
    Issue Tracking
  • github.com https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g
    ExploitMitigationPatchVendor Advisory
  • github.com https://github.com/nuxt/nuxt/security/advisories/GHSA-x6qj-4h56-5rj5
    ExploitMitigationPatchVendor Advisory

Remediation

  • github.com https://github.com/nuxt/nuxt/commit/77187ee4015e9267fb464951542a3e09e8b5fa05
    Patch
  • github.com https://github.com/nuxt/nuxt/commit/e351de943e82db16970618b60dc7fdbaa58630f3
    Patch
  • github.com https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g
    ExploitMitigationPatchVendor Advisory
  • github.com https://github.com/nuxt/nuxt/security/advisories/GHSA-x6qj-4h56-5rj5
    ExploitMitigationPatchVendor Advisory