CVE-2026-46342

Nuxt is an open-source web development framework for Vue.js. In Nuxt versions 3.1.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6 and @nuxt/nitro-server versions 3.20.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, the /__nuxt_island/* endpoint accepts attacker-controlled props query/body parameters and renders any island component without verifying that the URL-resident hash (<Name>_<hashId>.json) was actually issued for those inputs by <NuxtIsland>. The hash is computed and embedded client-side but never validated server-side, so the same path can return materially different responses depending on the query. This issue has been patched in versions 3.21.6 and 4.4.6.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/nuxt/nuxt/pull/35077	Issue Tracking
https://github.com/nuxt/nuxt/security/advisories/GHSA-g8wj-3cr3-6w7v	Mitigation Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:nuxt:nuxt::::::::
	cpe:2.3:a:nuxt:nuxt::::::::
	cpe:2.3:a:nuxt:nuxt\/nitro-server::::::node.js::*
	cpe:2.3:a:nuxt:nuxt\/nitro-server::::::node.js::*

History

No history.

Information

Published : 2026-06-12 14:16

Updated : 2026-06-17 10:53

NVD link : CVE-2026-46342

Mitre link : CVE-2026-46342

CVE.ORG link : CVE-2026-46342

JSON object : View

Products Affected

nuxt

nuxt\/nitro-server
nuxt

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-349

Acceptance of Extraneous Untrusted Data With Trusted Data

CWE-444

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

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