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.
Advisories

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Fixes

Solution

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Workaround

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History

Mon, 02 Nov 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 02 Nov 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Nuxt nuxt/nitro-server
Vendors & Products Nuxt nuxt/nitro-server

Mon, 02 Nov 2026 02:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Nuxt 4.6.0 before 4.6.2 Route Param Confusion via getRouterParam
First Time appeared Nuxt
Nuxt nuxt
Nuxt nuxt\/nitro-server
Weaknesses CWE-436
CPEs cpe:2.3:a:nuxt:nuxt:*:*:*:*:*:*:*:*
cpe:2.3:a:nuxt:nuxt\/nitro-server:*:*:*:*:*:*:*:*
Vendors & Products Nuxt
Nuxt nuxt
Nuxt nuxt\/nitro-server
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-02T14:21:44.137Z

Reserved: 2026-11-01T12:48:05.669Z

Link: CVE-2026-120309

cve-icon Vulnrichment

Updated: 2026-11-02T14:21:39.255Z

cve-icon NVD

Status : Received

Published: 2026-11-02T03:17:28.217

Modified: 2026-11-02T15:17:21.837

Link: CVE-2026-120309

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-02T09:30:16Z

Weaknesses