{"schemaVersion":3,"id":"CVE-2026-114131","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Nuxt is an open-source web development framework for Vue.js. From 3.11.0 until 3.21.4 and 4.4.4, Nuxt compares route-rule keys with the raw request path while route resolution decodes dynamic and catch-all parameters, allowing a percent-encoded segment to resolve to a protected page without matching the routeRules entry intended for that path. As a result, appMiddleware can be skipped during server rendering and an unauthenticated requester can receive the gated page and its SSR data. The same mismatch affects app-manifest rules including redirect, appLayout, ssr, prerender, and payload flags derived from cache, isr, and swr. This vulnerability is fixed in 4.4.4 and 3.21.4.","dates":{"published":"2026-10-21T17:41:24.016Z","modified":"2026-10-21T17:41:24.016Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-436","name":"Interpretation Conflict","description":"Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.","type":"weakness","status":"Incomplete","abstraction":"Class","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/436.html"},{"id":"CWE-863","name":"Incorrect Authorization","description":"The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.","type":"weakness","status":"Incomplete","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/863.html"}],"affected":[{"vendor":"nuxt","product":"nuxt","name":"nuxt","label":"nuxt","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 4.0.0, < 4.4.4","noFixRecorded":false,"fixedIn":null},{"text":"≥ 3.11.0, < 3.21.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 4.0.0, < 4.4.4 | ≥ 3.11.0, < 3.21.4","eol":null,"hubHref":"/vendor/nuxt/nuxt"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/nuxt/nuxt/security/advisories/GHSA-6gq8-jgmh-3ffp","label":"github.com/nuxt/nuxt/security/advisories/GHSA-6gq8-jgmh-3ffp","hostname":"github.com","tags":["X Refsource CONFIRM"]},{"url":"https://github.com/nuxt/nuxt/commit/81f86ac5ee82bb1a9b887e59f3bc84624d711497","label":"github.com/nuxt/nuxt/commit/81f86ac5ee82bb1a9b887e59f3bc84624d711497","hostname":"github.com","tags":["X Refsource MISC"]},{"url":"https://github.com/nuxt/nuxt/commit/9123ed850c468a7424a868c20d0d49a5507d32e5","label":"github.com/nuxt/nuxt/commit/9123ed850c468a7424a868c20d0d49a5507d32e5","hostname":"github.com","tags":["X Refsource MISC"]},{"url":"https://github.com/nuxt/nuxt/releases/tag/v3.21.11","label":"github.com/nuxt/nuxt/releases/tag/v3.21.11","hostname":"github.com","tags":["X Refsource MISC"]},{"url":"https://github.com/nuxt/nuxt/releases/tag/v4.5.2","label":"github.com/nuxt/nuxt/releases/tag/v4.5.2","hostname":"github.com","tags":["X Refsource MISC"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-21T17:41:24.016Z","label":"Published","detail":"Vulnerability first disclosed.","source":null}],"risk":{"score":26,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T05:31:01.733Z","stale":false,"partial":false}}