{"id":"CVE-2026-114131","state":"PUBLISHED","title":"Nuxt: Route rules are matched against the raw request path, so a percent-encoded segment can bypass `appMiddleware` on dynamic and catch-all routes","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.","publishedAt":"2026-10-21T17:41:24.016Z","updatedAt":"2026-10-30T17:48:52.857Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["nuxt nuxt"],"affected":[{"vendor":"nuxt","product":"nuxt","versions":[{"version":">= 4.0.0, < 4.4.4","status":"affected"},{"version":">= 3.11.0, < 3.21.4","status":"affected"}]}],"references":["https://github.com/nuxt/nuxt/security/advisories/GHSA-6gq8-jgmh-3ffp","https://github.com/nuxt/nuxt/commit/81f86ac5ee82bb1a9b887e59f3bc84624d711497","https://github.com/nuxt/nuxt/commit/9123ed850c468a7424a868c20d0d49a5507d32e5","https://github.com/nuxt/nuxt/releases/tag/v3.21.11","https://github.com/nuxt/nuxt/releases/tag/v4.5.2"],"weaknesses":["CWE-436","CWE-863"],"ingestedAt":"2026-10-30T17:58:06.712Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/114xxx/CVE-2026-114131.json","commit":"4ce3757ea483699b57536e7ce3d0b786d039ae71","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-114131","state":"PUBLISHED","datePublished":"2026-10-21T17:41:24.016Z","dateUpdated":"2026-10-30T17:48:52.857Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-20T21:53:58.473Z"},"containers":{"cna":{"title":"Nuxt: Route rules are matched against the raw request path, so a percent-encoded segment can bypass `appMiddleware` on dynamic and catch-all routes","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"nuxt","product":"nuxt","versions":[{"version":">= 4.0.0, < 4.4.4","status":"affected"},{"version":">= 3.11.0, < 3.21.4","status":"affected"}]}],"references":[{"url":"https://github.com/nuxt/nuxt/security/advisories/GHSA-6gq8-jgmh-3ffp","name":"https://github.com/nuxt/nuxt/security/advisories/GHSA-6gq8-jgmh-3ffp","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/nuxt/nuxt/commit/81f86ac5ee82bb1a9b887e59f3bc84624d711497","name":"https://github.com/nuxt/nuxt/commit/81f86ac5ee82bb1a9b887e59f3bc84624d711497","tags":["x_refsource_MISC"]},{"url":"https://github.com/nuxt/nuxt/commit/9123ed850c468a7424a868c20d0d49a5507d32e5","name":"https://github.com/nuxt/nuxt/commit/9123ed850c468a7424a868c20d0d49a5507d32e5","tags":["x_refsource_MISC"]},{"url":"https://github.com/nuxt/nuxt/releases/tag/v3.21.11","name":"https://github.com/nuxt/nuxt/releases/tag/v3.21.11","tags":["x_refsource_MISC"]},{"url":"https://github.com/nuxt/nuxt/releases/tag/v4.5.2","name":"https://github.com/nuxt/nuxt/releases/tag/v4.5.2","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-436","lang":"en","description":"CWE-436: Interpretation Conflict","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-21T17:41:24.016Z"},"source":{"advisory":"GHSA-6gq8-jgmh-3ffp","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-30T17:48:43.512590Z","id":"CVE-2026-114131","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-30T17:48:52.857Z"}}]}}}