{"id":"GHSA-9v7c-q64q-vv33","revision":null,"records":[{"revision":"e78cf0db17414bee8d5981d608e84d9c","observedAt":"2026-11-04T02:57:16.741+00:00","statement":{"source":"cve-program","id":"CVE-2026-119200","aliases":[],"title":"Nuxt: Dot segments in the request path bypass `server/middleware` path checks and server route rules on page routes","description":"Nuxt is an open-source web development framework for Vue.js. From 4.6.0 until 4.6.3, Nuxt resolves literal or percent-encoded dot segments before rendering a page while Nitro routing, server/middleware checks, and server route rules evaluate the unresolved path. A request such as /%2e/admin can therefore render app/pages/admin.vue and its server-rendered data while checks keyed to /admin, redirects, or per-route security headers do not apply. API handlers, appMiddleware, Nuxt 3, and Nuxt 4.0.0 through 4.5.x are not affected, and exploitation requires a client that sends dot segments without browser normalization. This issue is fixed in version 4.6.3.","state":0,"publishedAt":"2026-10-29T20:17:08.837+00:00","modifiedAt":"2026-11-04T01:41:26.806+00:00","affected":[{"ecosystem":"Vendor product","name":"nuxt","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"nuxt\",\n                    \"product\": \"nuxt\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 4.6.0, < 4.6.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"nitro-server","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"@nuxt\",\n                    \"product\": \"nitro-server\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 4.6.0, < 4.6.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/nuxt/nuxt/security/advisories/GHSA-9v7c-q64q-vv33","https://github.com/nuxt/nuxt/commit/45463f8b58487e387149ebfb704d6a0834b3a450","https://github.com/nuxt/nuxt/releases/tag/v4.6.3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119200","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-119200","identifiers":["CVE-2026-119200"]},"retained":false,"historicalAffected":[]},{"revision":"544ade8cd80849d98adb3a443a271240","observedAt":"2026-11-14T04:06:12.494+00:00","statement":{"source":"euvd","id":"EUVD-2026-113371","aliases":["CVE-2026-119200","GHSA-9v7c-q64q-vv33"],"title":"Nuxt is an open-source web development framework for Vue.js. From 4.6.0 until 4.6.3, Nuxt resolves literal or percent-encoded dot segments before rendering a page while Nitro routing, server/middleware checks, and server route rules evaluat…","description":"Nuxt is an open-source web development framework for Vue.js. From 4.6.0 until 4.6.3, Nuxt resolves literal or percent-encoded dot segments before rendering a page while Nitro routing, server/middleware checks, and server route rules evaluate the unresolved path. A request such as /%2e/admin can therefore render app/pages/admin.vue and its server-rendered data while checks keyed to /admin, redirects, or per-route security headers do not apply. API handlers, appMiddleware, Nuxt 3, and Nuxt 4.0.0 through 4.5.x are not affected, and exploitation requires a client that sends dot segments without browser normalization. This issue is fixed in version 4.6.3.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","score":6.5,"severity":null}],"references":["https://github.com/nuxt/nuxt/security/advisories/GHSA-9v7c-q64q-vv33","https://github.com/nuxt/nuxt/commit/45463f8b58487e387149ebfb704d6a0834b3a450","https://github.com/nuxt/nuxt/releases/tag/v4.6.3"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-113371","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 29, 2026, 8:17:08 PM","dateUpdated":"Nov 4, 2026, 1:41:26 AM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-113371","identifiers":["EUVD-2026-113371","CVE-2026-119200","GHSA-9v7c-q64q-vv33"]},"retained":false,"historicalAffected":[]},{"revision":"5dc8dfda85324c8db82a6eccd81f50ce","observedAt":"2026-11-06T01:43:49.822+00:00","statement":{"source":"nvd","id":"CVE-2026-119200","aliases":[],"title":"Nuxt is an open-source web development framework for Vue.js. From 4.6.0 until 4.6.3, Nuxt resolves literal or percent-encoded dot segments before rendering a page while Nitro routing, server/middleware checks, and server route rules evaluat…","description":"Nuxt is an open-source web development framework for Vue.js. From 4.6.0 until 4.6.3, Nuxt resolves literal or percent-encoded dot segments before rendering a page while Nitro routing, server/middleware checks, and server route rules evaluate the unresolved path. A request such as /%2e/admin can therefore render app/pages/admin.vue and its server-rendered data while checks keyed to /admin, redirects, or per-route security headers do not apply. API handlers, appMiddleware, Nuxt 3, and Nuxt 4.0.0 through 4.5.x are not affected, and exploitation requires a client that sends dot segments without browser normalization. This issue is fixed in version 4.6.3.","state":0,"publishedAt":"2026-10-29T21:17:18.943+00:00","modifiedAt":"2026-11-04T02:17:18.313+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/nuxt/nuxt/commit/45463f8b58487e387149ebfb704d6a0834b3a450","https://github.com/nuxt/nuxt/releases/tag/v4.6.3","https://github.com/nuxt/nuxt/security/advisories/GHSA-9v7c-q64q-vv33"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-119200","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-41","CWE-436","CWE-863"],"productCriteria":[],"sourceDates":{"published":"2026-10-29T21:17:18.943","lastModified":"2026-11-04T02:17:18.313"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-119200","identifiers":["CVE-2026-119200"]},"retained":false,"historicalAffected":[]},{"revision":"868c1a6ac79244208157e5d59f5712ef","observedAt":"2026-10-30T23:45:44.41+00:00","statement":{"source":"osv","id":"GHSA-9v7c-q64q-vv33","aliases":["CVE-2026-119200"],"title":"Nuxt: Dot segments in the request path bypass `server/middleware` path checks and server route rules on page routes","description":"### Summary\n\nSince `4.6.0`, Nuxt resolves `.` and `..` segments in the request path, including percent-encoded forms such as `%2e`, before rendering a page. Nitro's routing, Nitro's route rules and `server/middleware` see the path with those segments still in place. A request for `/%2e/admin` therefore renders the page at `/admin`, while server-side checks keyed on `/admin` do not apply.\n\n### Impact\n\nAn unauthenticated attacker can bypass server-side controls that match on the request path of a page route.\n\n`server/middleware` that checks `event.path` (or `event.node.req.url`) is skipped:\n\n```ts\nexport default defineEventHandler((event) => {\n  if (event.path.startsWith('/admin') && !isAuthenticated(event)) {\n    throw createError({ statusCode: 401 })\n  }\n})\n```\n\nWith this middleware, `/admin` returns 401, but `/%2e/admin`, `/.%2e/admin` and `/x/%2e%2e/admin` reach the middleware with `event.path` set to `/./admin`, `/../admin` and `/x/../admin`, and render `app/pages/admin.vue` along with the data it fetches during server rendering.\n\nServer-side `redirect` and `headers` route rules are skipped in the same way, so `'/admin/**': { redirect: '/login' }` does not redirect `/%2e/admin/secret`, and per-route security headers such as `Content-Security-Policy` are not sent.\n\nNot affected:\n\n- API handlers in `server/api` and `server/routes`. Nitro's router does not resolve dot segments, so these requests do not reach the handler.\n- `appMiddleware` route rules and middleware declared with `definePageMeta`, which are matched against the resolved route.\n- Nuxt `3.x` and `4.0.0` to `4.5.x`, which pass the path to the page router unchanged, so these requests 404.\n\nBrowsers resolve dot segments before sending a request, so exploitation requires a client that sends the path as written.\n\n### Patches\n\nFixed in `nuxt@4.6.3` and `@nuxt/nitro-server@4.6.3`. A page request whose path contains `.` or `..` segments now receives a 404 instead of rendering the page the path resolves to, and route-rule keys and lookup paths have their dot segments resolved, including percent-encoded spellings, before they are compared.\n\n### Workarounds\n\nReject dot segments in a server middleware that runs before your other middleware (middleware runs in file name order):\n\n```ts\n// server/middleware/0.dot-segments.ts\nexport default defineEventHandler((event) => {\n  if (/(?:^|\\/)\\.{1,2}(?:\\/|$)/.test(event.path.split('?')[0])) {\n    throw createError({ statusCode: 404 })\n  }\n})\n```\n\nChecking `getRequestURL(event).pathname` instead of `event.path` is not a sufficient workaround: it resolves dot segments, but keeps percent-encoding such as `%61` that the page router decodes. Path checks in server middleware should also account for the page router matching paths case-insensitively unless `router.options.sensitive` is set.\n\nA reverse proxy or CDN that normalises the request path before forwarding it also removes the mismatch.\n\n### Credits\n\nThanks to @vinzabe, @nikhilagrawalsf (Nikhil Agrawal, Mettle Labs), @0xjunwei and @kq5y, who reported this issue independently.","state":0,"publishedAt":"2026-10-30T23:00:53+00:00","modifiedAt":"2026-10-30T23:15:07.324896+00:00","affected":[{"ecosystem":"npm","name":"nuxt","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"4.6.0"},{"kind":"fixed","version":"4.6.3"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"@nuxt/nitro-server","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"4.6.0"},{"kind":"fixed","version":"4.6.3"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/nuxt/nuxt/security/advisories/GHSA-9v7c-q64q-vv33","https://nvd.nist.gov/vuln/detail/CVE-2026-119200","https://github.com/nuxt/nuxt/commit/45463f8b58487e387149ebfb704d6a0834b3a450","https://github.com/nuxt/nuxt","https://github.com/nuxt/nuxt/releases/tag/v4.6.3"],"sourceUrl":"https://github.com/advisories/GHSA-9v7c-q64q-vv33","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-9v7c-q64q-vv33","identifiers":["GHSA-9v7c-q64q-vv33","CVE-2026-119200"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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