{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "3.13.0"
                  },
                  {
                    "fixed": "4.6.2"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "fixed": "493565e99451a0f52330b1f6b979254a4a39e5d0"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "original_tag": "v4.6.2",
                "range": [
                  {
                    "fixed": "026e99314c5dfddc63de6d40c977b79c85c88bf8"
                  }
                ],
                "source": "REFERENCES_TAG"
              }
            ]
          },
          "events": [
            {
              "introduced": "74ef96d096d0045fd00fccd880c1dbbfea51e22a"
            },
            {
              "fixed": "026e99314c5dfddc63de6d40c977b79c85c88bf8"
            },
            {
              "fixed": "493565e99451a0f52330b1f6b979254a4a39e5d0"
            }
          ],
          "repo": "https://github.com/nuxt/nuxt",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-xfq5-w38q-pc2x"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114133.json"
  },
  "details": "Nuxt is an open-source web development framework for Vue.js. From 3.13.0 until 4.6.2, the server-island renderer serializes raw useHeadSafe entry input into the island response without preserving the safe-input marker, and NuxtIsland later inserts that input into the page head as an ordinary entry. An application that passes attacker-controlled data to useHeadSafe in a .server.vue component or page, or in a component rendered through NuxtIsland, can therefore render values normally removed by the allowlist, including event-handler attributes or executable script content, resulting in stored cross-site scripting in the application origin. This issue is fixed in version 4.6.2 .",
  "id": "CVE-2026-114133",
  "modified": "2026-10-22T02:30:48.910018904Z",
  "published": "2026-10-21T17:52:09.381Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114133.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nuxt/nuxt/commit/493565e99451a0f52330b1f6b979254a4a39e5d0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nuxt/nuxt/releases/tag/v4.6.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-xfq5-w38q-pc2x"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114133"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Nuxt server islands render `useHeadSafe` input without sanitisation"
}