{"id":"CVE-2026-114130","aliases":["GHSA-jjm6-p2m9-9w4x"],"url":"https://o3.security/vulnerability/CVE-2026-114130","summary":"Nuxt: Incomplete fix for GHSA-934w-87qh-qr26: a `javascript:` URL prefixed with an ASCII control character executes from `<NuxtLink>` when `pages` is disabled","details":"## Impact\n\nAn application that renders `<NuxtLink :to=\"...\">` with a value it does not control can be made to render an anchor whose `href` executes script in the application's origin when clicked.\n\nThis is an incomplete fix for [GHSA-934w-87qh-qr26](https://github.com/nuxt/nuxt/security/advisories/GHSA-934w-87qh-qr26) (CVE-2026-53722). It only affects applications running without a `pages/` directory, where `pages` resolves to `false` and Nuxt registers its own router in place of vue-router. Applications using vue-router are not affected.\n\nPrefixing `javascript:` with an ASCII C0 control character, for example `%01`, meant the value was not recognised as having a protocol. It was classified as an internal route and so never reached the protocol check added in GHSA-934w-87qh-qr26, and the router used for `pages: false` passed it through to the rendered `href` unchanged. Browsers strip the leading control character and run the result as a script URL.\n\nBoth `<NuxtLink custom>` and the default anchor are affected, and the `href` is present in the server-rendered HTML.\n\n## Mitigating factors\n\n- The application must have `pages` disabled (no `pages/` directory, or `pages: false`).\n- The application must bind untrusted input to `:to`.\n- A victim must click the rendered link.\n\n## Affected versions\n\n`nuxt` `<4.6.0`, including all Nuxt 3 releases. Versions before `4.4.7` and `3.21.7` are also affected by GHSA-934w-87qh-qr26.\n\n## Patches\n\nFixed in `nuxt@4.6.0`. Nuxt 3 reached end of life on 31 July 2026 and will not receive a fix.\n\nAnchor `href` values are now checked for script-capable protocols wherever they are rendered, including the router used when `pages` is disabled. Protocol detection also moved to the platform `URL` parser, so a URL is classified the same way the browser will read it.\n\n## Workarounds\n\nUpgrade to `nuxt@4.6.0` or later. If you cannot upgrade, including on Nuxt 3, validate values before binding them to `:to`, for example by rejecting anything that is not a path beginning with a single `/`.","published":"2026-10-21T17:37:58.400Z","modified":"2026-10-22T02:48:51.628509649Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"nuxt","fixedVersion":"4.6.0"}],"fix":{"url":"https://github.com/nuxt/nuxt/commit/355ed9565127ff9b1453deb7160059ed55b3cb85","label":"nuxt/nuxt@355ed95"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114130.json"},{"type":"FIX","url":"https://github.com/nuxt/nuxt/commit/355ed9565127ff9b1453deb7160059ed55b3cb85"},{"type":"FIX","url":"https://github.com/nuxt/nuxt/commit/df46569d5d3c7a7799de54c328634168fbae70bb"},{"type":"FIX","url":"https://github.com/nuxt/nuxt/pull/36459"},{"type":"WEB","url":"https://github.com/nuxt/nuxt/releases/tag/v4.6.0"},{"type":"ADVISORY","url":"https://github.com/nuxt/nuxt/security/advisories/GHSA-jjm6-p2m9-9w4x"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114130"},{"type":"PACKAGE","url":"https://github.com/nuxt/nuxt"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-22T02:48:51.628509649Z"}}