{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "3.21.6"
                  },
                  {
                    "fixed": "4.0.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "introduced": "4.4.6"
                  },
                  {
                    "fixed": "4.6.4"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "fixed": "6f1b93c643355688bc9e2d7434723f7fd3f25092"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "original_tag": "v4.6.4",
                "range": [
                  {
                    "fixed": "b9a6b687018a87db72832620beec55bf46abd623"
                  }
                ],
                "source": "REFERENCES_TAG"
              }
            ]
          },
          "events": [
            {
              "introduced": "1a8fff351be63bdc639a8b0a2f5a9e74dad240c9"
            },
            {
              "fixed": "8aacdde48e8388c8bb11b9a5c2f59935341bfcfd"
            },
            {
              "introduced": "30a45f7bb206a8373b9183e60eb344891a6f5bb8"
            },
            {
              "fixed": "b9a6b687018a87db72832620beec55bf46abd623"
            },
            {
              "fixed": "6f1b93c643355688bc9e2d7434723f7fd3f25092"
            }
          ],
          "repo": "https://github.com/nuxt/nuxt",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-hf59-9xwc-2g4p"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-116",
      "CWE-349"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/128xxx/CVE-2026-128076.json"
  },
  "details": "Nuxt is an open-source web development framework for Vue.js. From 3.21.6 to before 4.0.0 and from 4.4.6 until 4.6.4, the /__nuxt_island path hash uses ohash serialization that does not escape quotes in string values or delimiters in object keys, allowing different island-prop tuples to produce the same path. For prerendering, substituted content is written into the generated page only if the crawler reaches a colliding URL before rendering the page with the legitimate props. Separately, a CDN or reverse proxy that keys island responses by path alone can be primed with the colliding response. If the substituted prop reaches v-html, innerHTML, or another unsafe HTML sink, the response can execute script in the application origin; otherwise the impact is content substitution. Applications that do not use server components or NuxtIsland, islands without attacker-influenced string props, and responses not cached by path alone are unaffected. This issue is fixed in version 4.6.4.",
  "id": "CVE-2026-128076",
  "modified": "2026-11-14T02:30:47.811118548Z",
  "published": "2026-11-13T17:38:34.081Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/128xxx/CVE-2026-128076.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nuxt/nuxt/commit/6f1b93c643355688bc9e2d7434723f7fd3f25092"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nuxt/nuxt/releases/tag/v4.6.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-hf59-9xwc-2g4p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-128076"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Nuxt: Colliding island props can share one `/__nuxt_island` path (incomplete fix for CVE-2026-46342)"
}