{"id":"CVE-2026-53721","aliases":["CLSA-2026-1783558975","CLSA-2026-1784077506","CLSA-2026-1784077509","CLSA-2026-1792160954","CLSA-2026-1792161453","CLSA-2026-1792161454","CLSA-2026-1792161483","CLSA-2026-1792161588","CLSA-2026-1792161594","CLSA-2026-1792161596","CLSA-2026-1792161816","CLSA-2026-1792161817","CLSA-2026-1792161930","CLSA-2026-1792161931","EUVD-2026-36427","GHSA-mm7m-92g8-7m47","GHSA-rq7w-g337-39qq"],"status":"published","title":"Nuxt: Route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher","description":"Nuxt is an open-source web development framework for Vue.js. From versions 3.11.0 to before 3.21.7 and 4.0.0 to before 4.4.7, there is a route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher. This issue has been patched in versions 3.21.7 and 4.4.7.","severity":{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00399,"percentile":0.34625,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-178","CWE-200","CWE-863"],"published":"2026-06-12T13:41:34Z","modified":"2026-11-10T19:58:28Z","fixes":[{"ecosystem":"npm","package":"nuxt","fixed_in":["4.4.7","3.21.7"],"sources":["ghsa","osv"]},{"ecosystem":"TuxCare:npm","package":"nuxt","fixed_in":["3.12.4-tuxcare.8","3.12.3-tuxcare.5"],"sources":["osv"]},{"ecosystem":"TuxCare:npm","package":"@nuxt/kit","fixed_in":["3.12.4-tuxcare.8","3.12.3-tuxcare.5"],"sources":["osv"]},{"ecosystem":"TuxCare:npm","package":"@nuxt/schema","fixed_in":["3.12.4-tuxcare.8","3.12.3-tuxcare.5"],"sources":["osv"]},{"ecosystem":"TuxCare:npm","package":"@nuxt/vite-builder","fixed_in":["3.12.4-tuxcare.8","3.12.3-tuxcare.5"],"sources":["osv"]},{"ecosystem":"TuxCare:npm","package":"@nuxt/webpack-builder","fixed_in":["3.12.4-tuxcare.8","3.12.3-tuxcare.5"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"nuxt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.4.7"}]}]},{"source":"ghsa","ecosystem":"npm","package":"nuxt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.11.0"},{"fixed":"3.21.7"}]}]},{"source":"ghsa","ecosystem":"npm","package":"nuxt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0-alpha.1"},{"fixed":"4.4.7"}]}]},{"source":"osv","ecosystem":"TuxCare:npm","package":"nuxt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.3-tuxcare.0"},{"fixed":"4.0.3-tuxcare.4"}]}],"versions":["4.0.3","4.0.3-tuxcare.1","4.0.3-tuxcare.2","4.0.3-tuxcare.3"],"bundled":2},{"source":"osv","ecosystem":"TuxCare:npm","package":"nuxt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.12.4-tuxcare.0"},{"fixed":"3.12.4-tuxcare.8"}]}],"versions":["3.12.4","3.12.4-tuxcare.2","3.12.4-tuxcare.3","3.12.4-tuxcare.4","3.12.4-tuxcare.5","3.12.4-tuxcare.6","3.12.4-tuxcare.7"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"nuxt","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.12.3-tuxcare.0"},{"fixed":"3.12.3-tuxcare.5"}]}],"versions":["3.12.3","3.12.3-tuxcare.1","3.12.3-tuxcare.2","3.12.3-tuxcare.3","3.12.3-tuxcare.4"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"@nuxt/vite-builder","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.3-tuxcare.0"},{"fixed":"4.0.3-tuxcare.4"}]}],"versions":["4.0.3","4.0.3-tuxcare.1","4.0.3-tuxcare.3"],"bundled":7},{"source":"osv","ecosystem":"TuxCare:npm","package":"@nuxt/kit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.12.4-tuxcare.0"},{"fixed":"3.12.4-tuxcare.8"}]}],"versions":["3.12.4","3.12.4-tuxcare.2","3.12.4-tuxcare.3","3.12.4-tuxcare.6","3.12.4-tuxcare.7"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"@nuxt/kit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.12.3-tuxcare.0"},{"fixed":"3.12.3-tuxcare.5"}]}],"versions":["3.12.3","3.12.3-tuxcare.1","3.12.3-tuxcare.3","3.12.3-tuxcare.4"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"@nuxt/rspack-builder","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.3-tuxcare.0"},{"fixed":"4.0.3-tuxcare.4"}]}],"versions":["4.0.3","4.0.3-tuxcare.1","4.0.3-tuxcare.3"],"bundled":7},{"source":"osv","ecosystem":"TuxCare:npm","package":"@nuxt/schema","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.3-tuxcare.0"},{"fixed":"4.0.3-tuxcare.4"}]}],"versions":["4.0.3","4.0.3-tuxcare.1","4.0.3-tuxcare.3"],"bundled":7},{"source":"osv","ecosystem":"TuxCare:npm","package":"@nuxt/schema","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.12.4-tuxcare.0"},{"fixed":"3.12.4-tuxcare.8"}]}],"versions":["3.12.4","3.12.4-tuxcare.2","3.12.4-tuxcare.3","3.12.4-tuxcare.6","3.12.4-tuxcare.7"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"@nuxt/schema","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.12.3-tuxcare.0"},{"fixed":"3.12.3-tuxcare.5"}]}],"versions":["3.12.3","3.12.3-tuxcare.1","3.12.3-tuxcare.3","3.12.3-tuxcare.4"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"@nuxt/vite-builder","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.12.4-tuxcare.0"},{"fixed":"3.12.4-tuxcare.8"}]}],"versions":["3.12.4","3.12.4-tuxcare.2","3.12.4-tuxcare.3","3.12.4-tuxcare.6","3.12.4-tuxcare.7"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"@nuxt/vite-builder","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.12.3-tuxcare.0"},{"fixed":"3.12.3-tuxcare.5"}]}],"versions":["3.12.3","3.12.3-tuxcare.1","3.12.3-tuxcare.3","3.12.3-tuxcare.4"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"@nuxt/webpack-builder","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.12.4-tuxcare.0"},{"fixed":"3.12.4-tuxcare.8"}]}],"versions":["3.12.4","3.12.4-tuxcare.2","3.12.4-tuxcare.3","3.12.4-tuxcare.4","3.12.4-tuxcare.5","3.12.4-tuxcare.6","3.12.4-tuxcare.7"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"@nuxt/webpack-builder","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.12.3-tuxcare.0"},{"fixed":"3.12.3-tuxcare.5"}]}],"versions":["3.12.3","3.12.3-tuxcare.1","3.12.3-tuxcare.3","3.12.3-tuxcare.4"]},{"source":"osv","ecosystem":"npm","package":"nuxt","ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0"},{"fixed":"4.4.7"}]}]},{"source":"osv","ecosystem":"npm","package":"nuxt","ranges":[{"type":"SEMVER","events":[{"introduced":"3.11.0"},{"fixed":"3.21.7"}]}]},{"source":"osv","ecosystem":"npm","package":"nuxt","ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0-alpha.1"},{"fixed":"4.4.7"}]}]}],"products":[{"vendor":"@clerk","product":"nuxt"},{"vendor":"nuxt","product":"nuxt"}],"references":[{"url":"https://github.com/nuxt/nuxt/security/advisories/GHSA-mm7m-92g8-7m47","tags":["x_refsource_CONFIRM","Mitigation","Patch","Vendor Advisory","advisory","web"]},{"url":"https://github.com/nuxt/nuxt/commit/07e39cd6f26e407b4192b7865bd17bc44536b9bb","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/nuxt/nuxt/commit/3f3e3fa7b5eec8e495f4f8ce0a54813a8875a11e","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53721","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-mm7m-92g8-7m47"},{"url":"https://github.com/nuxt/nuxt/security/advisories/GHSA-rq7w-g337-39qq","tags":["web"]},{"url":"https://github.com/nuxt/nuxt/pull/35201","tags":["web"]},{"url":"https://github.com/nuxt/nuxt/commit/55c75b78c989b8bd210837b0e5faaebbf2b87b15","tags":["web"]},{"url":"https://github.com/advisories/GHSA-rq7w-g337-39qq"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53721.json","tags":["advisory"]},{"url":"https://github.com/nuxt/nuxt","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-53721","title":"Nuxt: Route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher","description":"Nuxt is an open-source web development framework for Vue.js. From versions 3.11.0 to before 3.21.7 and 4.0.0 to before 4.4.7, there is a route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher. This issue has been patched in versions 3.21.7 and 4.4.7.","status":"published","published":"2026-06-12T13:41:34.022Z","modified":"2026-06-13T02:59:37.902Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-178","CWE-863"],"updated_at":"2026-11-02T14:19:59.761005Z"}],"euvd":[{"id":"EUVD-2026-36427","description":"Nuxt is an open-source web development framework for Vue.js. From versions 3.11.0 to before 3.21.7 and 4.0.0 to before 4.4.7, there is a route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher. This issue has been patched in versions 3.21.7 and 4.4.7.","status":"published","published":"2026-06-12T13:41:34Z","modified":"2026-06-13T02:59:37Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T18:20:43.222Z"}],"ghsa":[{"id":"GHSA-mm7m-92g8-7m47","title":"Nuxt: Route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher","description":"## Impact\n\nNuxt looks up `routeRules` for the current navigation by calling\n`getRouteRules({ path: to.path })` from the page-router plugin and the\nno-pages router plugin. The compiled `routeRules` matcher (built on\n`rou3`) performs case-sensitive matching, while vue-router is configured\nwith its default `sensitive: false` and matches paths case-insensitively.\n\nThe two routers therefore disagree on which rules apply to a given\nrequest path: vue-router still matches the page record for\n`/Admin/dashboard`, but the `routeRules` lookup for the same path\nreturns no match. Any `appMiddleware` declared via `routeRules` is never\nadded to the middleware set and never runs, on both SSR and client\nnavigations. The same path skips other path-keyed route rules in the\nsame way (`ssr`, `redirect`, `appLayout`, and the prerender / payload\nhints used client-side).\n\nFor applications using `routeRules` with `appMiddleware` as an\nauthorization gate (a documented pattern), an attacker can flip the case\nof any static segment in a protected URL (for example `/Admin/dashboard`\ninstead of `/admin/dashboard`) to render the protected page with the\nmiddleware skipped. The server returns the fully server-rendered page\nincluding any `useFetch` / `useAsyncData` results captured during SSR.\n\nThis is an instance of CWE-178 (Improper Handling of Case Sensitivity)\nleading to CWE-863 (Incorrect Authorization) for apps that treat\n`appMiddleware` as an authorization boundary.\n\n## Mitigating factors\n\n- Only affects apps that use `routeRules.appMiddleware`. The more\n  idiomatic `definePageMeta({ middleware })` is bound to the matched\n  route record and is unaffected.\n- Nuxt route middleware is documented as an app-layer concern, not a\n  server-side auth boundary; well-built apps enforce authorization\n  again at the API / data-fetching layer.\n- Apps that explicitly set `router.options.sensitive = true` are not\n  affected.\n\n## Patches\n\nFixed in `nuxt@4.4.7` (commit [`07e39cd6`](https://github.com/nuxt/nuxt/commit/07e39cd6f26e407b4192b7865bd17bc44536b9bb)) and backported to `nuxt@3.21.7` (commit [`3f3e3fa7`](https://github.com/nuxt/nuxt/commit/3f3e3fa7b5eec8e495f4f8ce0a54813a8875a11e)). The fix normalizes the path used for `routeRules` lookups so it matches vue-router's default case-insensitive semantics.\n\n## Workarounds\n\nUntil you can upgrade, you can mitigate by either:\n\n1. Setting `router.options.sensitive = true` so vue-router matches\n   case-sensitively (this changes route-matching behaviour app-wide).\n2. Moving security-critical middleware off `routeRules.appMiddleware`\n   and onto `definePageMeta({ middleware: [...] })` on the protected\n   page components, which is bound to the matched record.\n3. Enforcing authorization at the API / data-fetching layer (which you\n   should be doing in any case).\n\n## Credit\n\nReported by Anthropic / Claude through Anthropic's coordinated\nvulnerability disclosure process. Reference: ANT-2026-9FSEBYMC.","status":"published","published":"2026-06-16T13:48:31Z","modified":"2026-06-16T13:48:31Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-178","CWE-863"],"updated_at":"2026-11-02T14:40:28.438722Z"},{"id":"GHSA-rq7w-g337-39qq","title":"Nuxt: Dev server discloses project absolute path and persistent workspace UUID via `/.well-known/appspecific/com.chrome.devtools.json`","description":"### Summary\n\nWhen running `nuxt dev`, Nuxt registers an unauthenticated route at `/.well-known/appspecific/com.chrome.devtools.json` that returns the absolute filesystem path of the project root and a per-project UUID persisted to `node_modules/.cache/nuxt/chrome-workspace.json`. The route is enabled by default via `experimental.chromeDevtoolsProjectSettings: true`.\n\nThe endpoint exists to let Chrome DevTools' Workspace integration map sources to the developer's local checkout. The handler is registered directly on `nitro.options.devHandlers` and does not pass through the CORS / origin wrapper that the rest of the dev pipeline uses, so it has no host / origin / `Sec-Fetch-Site` check of its own.\n\n### Impact\n\nDev-server only. Production builds do not register the route.\n\nTwo values are disclosed:\n\n- `workspace.root`: the absolute filesystem path of the project (commonly reveals the OS username and the on-disk project name).\n- `workspace.uuid`: a v4 UUID persisted to `node_modules/.cache/nuxt/chrome-workspace.json`, stable across dev-server restarts and re-clones.\n\n### Threat model\n\nThe response carries no `Access-Control-Allow-Origin` header. A cross-origin `fetch()` from an arbitrary malicious page is therefore blocked by the browser's same-origin policy and cannot read the body. The two realistic recovery paths are:\n\n1. **LAN-adjacent attacker** when the developer runs `nuxt dev --host` (or otherwise binds to a non-loopback interface). A plain `curl http://\u003cdev-lan-ip\u003e:3000/.well-known/appspecific/com.chrome.devtools.json` returns the JSON; no browser, no CORS.\n2. **DNS rebinding** against the default loopback dev server. A page the developer visits resolves to the attacker, then re-resolves to `127.0.0.1` after the TTL; the browser believes the request is same-origin and reads the response.\n\n### Affected versions\n\n`nuxt@4.0.0-alpha.1` (PR #32084) through `nuxt@4.4.6`. `3.x` is not affected.\n\n### Reproduction\n\n```bash\nnpx nuxt dev\ncurl -s http://localhost:3000/.well-known/appspecific/com.chrome.devtools.json\n# {\"workspace\":{\"uuid\":\"...\",\"root\":\"/Users/\u003cname\u003e/...\"}}\n```\n\n### Workaround\n\nSet `experimental: { chromeDevtoolsProjectSettings: false }` in `nuxt.config.ts`. Chrome DevTools' Workspace auto-integration will stop working; the dev server is otherwise unaffected.\n\n### Patches\n\nFixed in `nuxt@4.4.7` by [#35201](https://github.com/nuxt/nuxt/pull/35201) (commit [`55c75b78`](https://github.com/nuxt/nuxt/commit/55c75b78c989b8bd210837b0e5faaebbf2b87b15)). The handler is now routed through the same host / origin gate the rest of the dev server uses, so the endpoint only responds to requests that look local.","status":"published","published":"2026-06-15T20:56:22Z","modified":"2026-06-15T20:56:23Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"low"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:40:28.438722Z"}],"nvd":[{"id":"CVE-2026-53721","description":"Nuxt is an open-source web development framework for Vue.js. From versions 3.11.0 to before 3.21.7 and 4.0.0 to before 4.4.7, there is a route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher. This issue has been patched in versions 3.21.7 and 4.4.7.","status":"published","published":"2026-06-12T15:16:31.297Z","modified":"2026-06-17T10:58:00.04Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-178","CWE-863"],"updated_at":"2026-11-02T14:12:23.846948Z"}],"osv":[{"id":"CVE-2026-53721","title":"Nuxt: Route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher","description":"Nuxt is an open-source web development framework for Vue.js. From versions 3.11.0 to before 3.21.7 and 4.0.0 to before 4.4.7, there is a route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher. This issue has been patched in versions 3.21.7 and 4.4.7.","status":"published","published":"2026-06-12T13:41:34.022Z","modified":"2026-10-28T02:31:11.263114703Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-178","CWE-863"],"updated_at":"2026-11-02T15:45:08.132336Z"},{"id":"GHSA-mm7m-92g8-7m47","title":"Nuxt: Route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher","description":"## Impact\n\nNuxt looks up `routeRules` for the current navigation by calling\n`getRouteRules({ path: to.path })` from the page-router plugin and the\nno-pages router plugin. The compiled `routeRules` matcher (built on\n`rou3`) performs case-sensitive matching, while vue-router is configured\nwith its default `sensitive: false` and matches paths case-insensitively.\n\nThe two routers therefore disagree on which rules apply to a given\nrequest path: vue-router still matches the page record for\n`/Admin/dashboard`, but the `routeRules` lookup for the same path\nreturns no match. Any `appMiddleware` declared via `routeRules` is never\nadded to the middleware set and never runs, on both SSR and client\nnavigations. The same path skips other path-keyed route rules in the\nsame way (`ssr`, `redirect`, `appLayout`, and the prerender / payload\nhints used client-side).\n\nFor applications using `routeRules` with `appMiddleware` as an\nauthorization gate (a documented pattern), an attacker can flip the case\nof any static segment in a protected URL (for example `/Admin/dashboard`\ninstead of `/admin/dashboard`) to render the protected page with the\nmiddleware skipped. The server returns the fully server-rendered page\nincluding any `useFetch` / `useAsyncData` results captured during SSR.\n\nThis is an instance of CWE-178 (Improper Handling of Case Sensitivity)\nleading to CWE-863 (Incorrect Authorization) for apps that treat\n`appMiddleware` as an authorization boundary.\n\n## Mitigating factors\n\n- Only affects apps that use `routeRules.appMiddleware`. The more\n  idiomatic `definePageMeta({ middleware })` is bound to the matched\n  route record and is unaffected.\n- Nuxt route middleware is documented as an app-layer concern, not a\n  server-side auth boundary; well-built apps enforce authorization\n  again at the API / data-fetching layer.\n- Apps that explicitly set `router.options.sensitive = true` are not\n  affected.\n\n## Patches\n\nFixed in `nuxt@4.4.7` (commit [`07e39cd6`](https://github.com/nuxt/nuxt/commit/07e39cd6f26e407b4192b7865bd17bc44536b9bb)) and backported to `nuxt@3.21.7` (commit [`3f3e3fa7`](https://github.com/nuxt/nuxt/commit/3f3e3fa7b5eec8e495f4f8ce0a54813a8875a11e)). The fix normalizes the path used for `routeRules` lookups so it matches vue-router's default case-insensitive semantics.\n\n## Workarounds\n\nUntil you can upgrade, you can mitigate by either:\n\n1. Setting `router.options.sensitive = true` so vue-router matches\n   case-sensitively (this changes route-matching behaviour app-wide).\n2. Moving security-critical middleware off `routeRules.appMiddleware`\n   and onto `definePageMeta({ middleware: [...] })` on the protected\n   page components, which is bound to the matched record.\n3. Enforcing authorization at the API / data-fetching layer (which you\n   should be doing in any case).\n\n## Credit\n\nReported by Anthropic / Claude through Anthropic's coordinated\nvulnerability disclosure process. Reference: ANT-2026-9FSEBYMC.","status":"published","published":"2026-06-16T13:48:31Z","modified":"2026-06-16T14:11:27.850739Z","cvss":[{"version":"4.0","score":8.8,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-178","CWE-863"],"updated_at":"2026-11-02T15:46:52.170928Z"},{"id":"GHSA-rq7w-g337-39qq","title":"Nuxt: Dev server discloses project absolute path and persistent workspace UUID via `/.well-known/appspecific/com.chrome.devtools.json`","description":"### Summary\n\nWhen running `nuxt dev`, Nuxt registers an unauthenticated route at `/.well-known/appspecific/com.chrome.devtools.json` that returns the absolute filesystem path of the project root and a per-project UUID persisted to `node_modules/.cache/nuxt/chrome-workspace.json`. The route is enabled by default via `experimental.chromeDevtoolsProjectSettings: true`.\n\nThe endpoint exists to let Chrome DevTools' Workspace integration map sources to the developer's local checkout. The handler is registered directly on `nitro.options.devHandlers` and does not pass through the CORS / origin wrapper that the rest of the dev pipeline uses, so it has no host / origin / `Sec-Fetch-Site` check of its own.\n\n### Impact\n\nDev-server only. Production builds do not register the route.\n\nTwo values are disclosed:\n\n- `workspace.root`: the absolute filesystem path of the project (commonly reveals the OS username and the on-disk project name).\n- `workspace.uuid`: a v4 UUID persisted to `node_modules/.cache/nuxt/chrome-workspace.json`, stable across dev-server restarts and re-clones.\n\n### Threat model\n\nThe response carries no `Access-Control-Allow-Origin` header. A cross-origin `fetch()` from an arbitrary malicious page is therefore blocked by the browser's same-origin policy and cannot read the body. The two realistic recovery paths are:\n\n1. **LAN-adjacent attacker** when the developer runs `nuxt dev --host` (or otherwise binds to a non-loopback interface). A plain `curl http://\u003cdev-lan-ip\u003e:3000/.well-known/appspecific/com.chrome.devtools.json` returns the JSON; no browser, no CORS.\n2. **DNS rebinding** against the default loopback dev server. A page the developer visits resolves to the attacker, then re-resolves to `127.0.0.1` after the TTL; the browser believes the request is same-origin and reads the response.\n\n### Affected versions\n\n`nuxt@4.0.0-alpha.1` (PR #32084) through `nuxt@4.4.6`. `3.x` is not affected.\n\n### Reproduction\n\n```bash\nnpx nuxt dev\ncurl -s http://localhost:3000/.well-known/appspecific/com.chrome.devtools.json\n# {\"workspace\":{\"uuid\":\"...\",\"root\":\"/Users/\u003cname\u003e/...\"}}\n```\n\n### Workaround\n\nSet `experimental: { chromeDevtoolsProjectSettings: false }` in `nuxt.config.ts`. Chrome DevTools' Workspace auto-integration will stop working; the dev server is otherwise unaffected.\n\n### Patches\n\nFixed in `nuxt@4.4.7` by [#35201](https://github.com/nuxt/nuxt/pull/35201) (commit [`55c75b78`](https://github.com/nuxt/nuxt/commit/55c75b78c989b8bd210837b0e5faaebbf2b87b15)). The handler is now routed through the same host / origin gate the rest of the dev server uses, so the endpoint only responds to requests that look local.","status":"published","published":"2026-06-15T20:56:22Z","modified":"2026-06-15T21:00:07.676162148Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","level":"low"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:46:56.281047Z"},{"id":"CLSA-2026-1783558975","title":"TuxCare security update for nuxt (5 CVEs)","description":"TuxCare rebuilt nuxt to address 5 CVEs. Fixed in 4.0.3-tuxcare.4.","status":"published","published":"2026-08-04T14:52:42Z","modified":"2026-11-10T19:58:28.757886344Z","updated_at":"2026-11-10T20:07:15.512362Z"},{"id":"CLSA-2026-1784077506","title":"TuxCare security update for nuxt (1 CVE)","description":"TuxCare rebuilt nuxt to address 1 CVE. Fixed in 3.12.4-tuxcare.8.","status":"published","published":"2026-08-04T14:52:44Z","modified":"2026-10-15T09:47:36.052951854Z","updated_at":"2026-11-02T15:43:46.151924Z"},{"id":"CLSA-2026-1784077509","title":"TuxCare security update for nuxt (1 CVE)","description":"TuxCare rebuilt nuxt to address 1 CVE. Fixed in 3.12.3-tuxcare.5.","status":"published","published":"2026-08-04T14:52:44Z","modified":"2026-10-15T09:47:36.203846472Z","updated_at":"2026-11-02T15:43:46.151924Z"},{"id":"CLSA-2026-1792160954","title":"TuxCare security update for @nuxt/vite-builder (2 CVEs)","description":"TuxCare rebuilt @nuxt/vite-builder to address 2 CVEs. Fixed in 4.0.3-tuxcare.4.","status":"published","published":"2026-10-16T14:29:10Z","modified":"2026-11-10T19:45:14.295679752Z","updated_at":"2026-11-10T20:12:40.351566Z"},{"id":"CLSA-2026-1792161453","title":"TuxCare security update for @nuxt/kit (1 CVE)","description":"TuxCare rebuilt @nuxt/kit to address 1 CVE. Fixed in 3.12.4-tuxcare.8.","status":"published","published":"2026-10-16T14:37:33Z","modified":"2026-10-16T16:31:02.816539877Z","updated_at":"2026-11-02T15:43:51.213191Z"},{"id":"CLSA-2026-1792161454","title":"TuxCare security update for @nuxt/kit (1 CVE)","description":"TuxCare rebuilt @nuxt/kit to address 1 CVE. Fixed in 3.12.3-tuxcare.5.","status":"published","published":"2026-10-16T14:37:34Z","modified":"2026-10-16T16:31:02.672030946Z","updated_at":"2026-11-02T15:43:51.213191Z"},{"id":"CLSA-2026-1792161483","title":"TuxCare security update for @nuxt/rspack-builder (4 CVEs)","description":"TuxCare rebuilt @nuxt/rspack-builder to address 4 CVEs. Fixed in 4.0.3-tuxcare.4.","status":"published","published":"2026-10-16T14:38:03Z","modified":"2026-11-10T19:45:16.370820957Z","updated_at":"2026-11-10T20:12:40.351566Z"},{"id":"CLSA-2026-1792161588","title":"TuxCare security update for @nuxt/schema (2 CVEs)","description":"TuxCare rebuilt @nuxt/schema to address 2 CVEs. Fixed in 4.0.3-tuxcare.4.","status":"published","published":"2026-10-16T14:39:48Z","modified":"2026-11-10T19:45:15.106359209Z","updated_at":"2026-11-10T20:12:40.351566Z"},{"id":"CLSA-2026-1792161594","title":"TuxCare security update for @nuxt/schema (1 CVE)","description":"TuxCare rebuilt @nuxt/schema to address 1 CVE. Fixed in 3.12.4-tuxcare.8.","status":"published","published":"2026-10-16T14:39:54Z","modified":"2026-10-16T16:31:05.870040717Z","updated_at":"2026-11-02T15:43:51.213191Z"},{"id":"CLSA-2026-1792161596","title":"TuxCare security update for @nuxt/schema (1 CVE)","description":"TuxCare rebuilt @nuxt/schema to address 1 CVE. Fixed in 3.12.3-tuxcare.5.","status":"published","published":"2026-10-16T14:39:56Z","modified":"2026-10-16T16:31:05.865257217Z","updated_at":"2026-11-02T15:43:51.213191Z"},{"id":"CLSA-2026-1792161816","title":"TuxCare security update for @nuxt/vite-builder (1 CVE)","description":"TuxCare rebuilt @nuxt/vite-builder to address 1 CVE. Fixed in 3.12.4-tuxcare.8.","status":"published","published":"2026-10-16T14:43:36Z","modified":"2026-10-16T16:30:34.583133752Z","updated_at":"2026-11-02T15:43:51.213191Z"},{"id":"CLSA-2026-1792161817","title":"TuxCare security update for @nuxt/vite-builder (1 CVE)","description":"TuxCare rebuilt @nuxt/vite-builder to address 1 CVE. Fixed in 3.12.3-tuxcare.5.","status":"published","published":"2026-10-16T14:43:37Z","modified":"2026-10-16T16:30:32.840132037Z","updated_at":"2026-11-02T15:43:51.213191Z"},{"id":"CLSA-2026-1792161930","title":"TuxCare security update for @nuxt/webpack-builder (1 CVE)","description":"TuxCare rebuilt @nuxt/webpack-builder to address 1 CVE. Fixed in 3.12.4-tuxcare.8.","status":"published","published":"2026-10-16T14:45:30Z","modified":"2026-10-16T16:31:18.948520133Z","updated_at":"2026-11-02T15:43:51.213191Z"},{"id":"CLSA-2026-1792161931","title":"TuxCare security update for @nuxt/webpack-builder (1 CVE)","description":"TuxCare rebuilt @nuxt/webpack-builder to address 1 CVE. Fixed in 3.12.3-tuxcare.5.","status":"published","published":"2026-10-16T14:45:31Z","modified":"2026-10-16T16:31:18.949993804Z","updated_at":"2026-11-02T15:43:51.213191Z"}]}}