{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0.136.0"
              },
              {
                "fixed": "0.143.0"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "ff4bce724cfa3fdf6fac4470c76a8511662b21f6"
            },
            {
              "fixed": "30e292371a89ca6d1f91a9553e0aa518b49f838d"
            }
          ],
          "repo": "https://github.com/getkin/kin-openapi",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-p6wj-qrr4-pgh5"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-248",
      "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97394.json"
  },
  "details": "kin-openapi is a Go project for handling OpenAPI files. From 0.136.0 until 0.143.0, openapi3filter accepts OpenAPI 3.1 array schemas without an items keyword and then dereferences the nil Schema.Items value while decoding application/x-www-form-urlencoded or multipart/form-data request bodies, response headers, and other array parameter surfaces. A remote unauthenticated client can reach an affected operation with a nonempty request or matching response and deterministically trigger a nil-pointer panic during ValidateRequest or ValidateResponse. OpenAPI 3.0 documents are not affected because document validation rejects arrays without items, and JSON request bodies use a different decoder path. This issue is fixed in version 0.143.0.",
  "id": "CVE-2026-97394",
  "modified": "2026-10-16T02:30:44.955452501Z",
  "published": "2026-10-15T15:29:05.238Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97394.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/getkin/kin-openapi/commit/30e292371a89ca6d1f91a9553e0aa518b49f838d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getkin/kin-openapi/releases/tag/v0.143.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-p6wj-qrr4-pgh5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97394"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "kin-openapi: Nil-pointer dereference panic in openapi3filter for OpenAPI 3.1 array schemas missing items"
}