CVE-2026-46342

June 12, 2026, 4:01 p.m.

2.3
Low

Description

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.

Product(s) Impacted

Vendor Product Versions
Nuxt
  • Nuxt
  • Nitro-server
  • 3.1.0-3.21.5, 4.0.0-alpha.1-4.4.5
  • 3.20.0-3.21.5, 4.0.0-alpha.1-4.4.5

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a nuxt nuxt 3.1.0-3.21.5 / / / / / / /
a nuxt nuxt 4.0.0-alpha.1-4.4.5 / / / / / / /
a nuxt nitro-server 3.20.0-3.21.5 / / / / / / /
a nuxt nitro-server 4.0.0-alpha.1-4.4.5 / / / / / / /

References

https://github.com/nuxt/nuxt/pull/35077
https://github.com/nuxt/nuxt/security/advisories/GHSA-g8wj-3cr3-6w7v

Tags

[email protected]
CWE-79
2026-06-12
CVE-2026-46342

CVSS Score

2.3 / 10

CVSS Data - 4.0

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Attack Requirements: PRESENT
  • Privileges Required: NONE
  • User Interaction: PASSIVE
  • Scope:
  • Confidentiality Impact: LOW
  • Integrity Impact: LOW
  • Availability Impact: NONE
  • Exploit Maturity: NOT_DEFINED

    • CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/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

    View Vector String

Timeline

Published: June 12, 2026, 2:16 p.m.
Last Modified: June 12, 2026, 4:01 p.m.

Status : Undergoing Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.