CVE-2026-49993

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 v3 5.7 MEDIUM

5.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.1 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:nuxt:nuxt\/rspack-builder::::::node.js::*
	cpe:2.3:a:nuxt:nuxt\/rspack-builder::::::node.js::*
	cpe:2.3:a:nuxt:nuxt\/webpack-builder::::::node.js::*
	cpe:2.3:a:nuxt:nuxt\/webpack-builder::::::node.js::*

History

No history.

Information

Published : 2026-06-12 14:16

Updated : 2026-06-17 10:55

NVD link : CVE-2026-49993

Mitre link : CVE-2026-49993

CVE.ORG link : CVE-2026-49993

JSON object : View

Products Affected

nuxt

nuxt\/rspack-builder
nuxt\/webpack-builder

CWE

CWE-749

Exposed Dangerous Method or Function

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