{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "4.0.0"
                  },
                  {
                    "fixed": "4.4.4"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "introduced": "3.11.0"
                  },
                  {
                    "fixed": "3.21.4"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "fixed": "81f86ac5ee82bb1a9b887e59f3bc84624d711497"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "range": [
                  {
                    "fixed": "9123ed850c468a7424a868c20d0d49a5507d32e5"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "original_tag": "v3.21.11",
                "range": [
                  {
                    "fixed": "e0a6ae9d5d68068f0d9108b385c6bb4c7f98fd4b"
                  }
                ],
                "source": "REFERENCES_TAG"
              },
              {
                "original_tag": "v4.5.2",
                "range": [
                  {
                    "fixed": "e2d3a3945a3459c0e3a869de85c0b53c6c214432"
                  }
                ],
                "source": "REFERENCES_TAG"
              }
            ]
          },
          "events": [
            {
              "introduced": "8aacdde48e8388c8bb11b9a5c2f59935341bfcfd"
            },
            {
              "fixed": "7f8443d72d1c4bc8703d3ccf60c156d1335fda74"
            },
            {
              "introduced": "78d5098c28d2e21622961d8b87ef9b4623194fec"
            },
            {
              "fixed": "20abe11fcab0461633840ad8437be23406e996f7"
            },
            {
              "fixed": "81f86ac5ee82bb1a9b887e59f3bc84624d711497"
            },
            {
              "fixed": "9123ed850c468a7424a868c20d0d49a5507d32e5"
            },
            {
              "fixed": "e0a6ae9d5d68068f0d9108b385c6bb4c7f98fd4b"
            },
            {
              "fixed": "e2d3a3945a3459c0e3a869de85c0b53c6c214432"
            }
          ],
          "repo": "https://github.com/nuxt/nuxt",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-6gq8-jgmh-3ffp"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-436",
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114131.json"
  },
  "details": "Nuxt is an open-source web development framework for Vue.js. From 3.11.0 until 3.21.4 and 4.4.4, Nuxt compares route-rule keys with the raw request path while route resolution decodes dynamic and catch-all parameters, allowing a percent-encoded segment to resolve to a protected page without matching the routeRules entry intended for that path. As a result, appMiddleware can be skipped during server rendering and an unauthenticated requester can receive the gated page and its SSR data. The same mismatch affects app-manifest rules including redirect, appLayout, ssr, prerender, and payload flags derived from cache, isr, and swr. This vulnerability is fixed in 4.4.4 and 3.21.4.",
  "id": "CVE-2026-114131",
  "modified": "2026-10-22T02:30:48.792242264Z",
  "published": "2026-10-21T17:41:24.016Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114131.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nuxt/nuxt/commit/81f86ac5ee82bb1a9b887e59f3bc84624d711497"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nuxt/nuxt/commit/9123ed850c468a7424a868c20d0d49a5507d32e5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nuxt/nuxt/releases/tag/v3.21.11"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nuxt/nuxt/releases/tag/v4.5.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-6gq8-jgmh-3ffp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114131"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Nuxt: Route rules are matched against the raw request path, so a percent-encoded segment can bypass `appMiddleware` on dynamic and catch-all routes"
}