---
id: CVE-2026-120309
title: Nuxt 4.6.0 before 4.6.2 Route Param Confusion via getRouterParam
summary: >-
  Nuxt from 4.6.0 before 4.6.2 contains a route parameter confusion
  vulnerability in getRouterParam and getRouterParams that lets attackers return
  a parameter value different from the one h3 matched by sending paths
  containing an encoded q…
severity: low
cvss: 3.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-436
vendor: nuxt
product: nuxt
affected:
  - nuxt >= 4.6.0 < 4.6.2
  - nuxt >= 4.6.0 < 4.6.2
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-02T14:21:34.272355Z'
published: '2026-11-02'
updated: '2026-11-02'
sourceUpdated: '2026-11-02T14:21:44.137Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-120309'
references:
  - url: 'https://github.com/nuxt/nuxt/security/advisories/GHSA-w7gw-66vg-99gq'
    label: GitHub Security Advisory (GHSA-w7gw-66vg-99gq)
  - url: >-
      https://www.vulncheck.com/advisories/nuxt-4.6.0-before-4.6.2-route-param-confusion-via-getrouterparam
    label: >-
      VulnCheck Advisory: Nuxt 4.6.0 before 4.6.2 Route Param Confusion via
      getRouterParam
tags:
  - cve.org
epss: 0.00229
epssPercentile: 0.13804
ingestedAt: '2026-11-05T19:30:42.650Z'
---

## Overview

Nuxt from 4.6.0 before 4.6.2 contains a route parameter confusion vulnerability in getRouterParam and getRouterParams that lets attackers return a parameter value different from the one h3 matched by sending paths containing an encoded question mark (%3F). Attackers can craft requests where authorization checks use the Nuxt helper value while resource selection uses event.context.params, allowing access to unauthorized resources.

## Affected

- `nuxt >= 4.6.0 < 4.6.2`
- `nuxt >= 4.6.0 < 4.6.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.