{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "7.12.0"
              },
              {
                "fixed": "7.15.1"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "26653a6bcbf8a9c5541f99dcfb526eafadf13434"
            },
            {
              "fixed": "587d08fca6ca61e00f44c1eda95bf6e6a9ab76ef"
            }
          ],
          "repo": "https://github.com/remix-run/react-router",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-84g9-w2xq-vcv6"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-352"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53663.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "2.17.3"
          },
          {
            "fixed": "2.17.5"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "React Router is a router for React. From 7.12.0 until 7.15.1, certain CSRF checks in React Router v7 Framework Mode were insufficient and run on POST requests, but were bypassed on PUT/PATCH/DELETE requests. This is a low severity vulnerability because modern browser protections (CORS preflight, SameSite cookies) already block the cross-origin attack vectors that this missing CSRF check would otherwise gate. This vulnerability is fixed in 7.15.1.",
  "id": "CVE-2026-53663",
  "modified": "2026-07-08T05:36:23.552557820Z",
  "published": "2026-06-22T17:39:29.160Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53663.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/remix-run/react-router/security/advisories/GHSA-84g9-w2xq-vcv6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53663"
    }
  ],
  "schema_version": "1.7.5",
  "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": "React Router: `handleDocumentRequest` CSRF check covers `POST` only; PUT/PATCH/DELETE bypass"
}