{"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","slug":"CVE-2026-120309","body":"## Overview\n\nNuxt 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.\n\n## Affected\n\n- `nuxt >= 4.6.0 < 4.6.2`\n- `nuxt >= 4.6.0 < 4.6.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":20,"depthScoreParts":{"impact":20.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}