CVE-2026-100349

{
  "etk_id": "ETK-2026-1694",
  "cve_id": "CVE-2026-100349",
  "display_id": "CVE-2026-100349",
  "ghsa_id": "GHSA-74vm-87hj-r66f",
  "euvd_id": "EUVD-2026-102159",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Response-validation nil pointer panic in kin-openapi",
  "summary": "kin-openapi versions before 0.146.0 can panic while validating responses against an OpenAPI definition whose response header uses content instead of a schema. An affected operation can terminate the application; remote availability impact depends on the application accepting an attacker-controlled OpenAPI specification.",
  "mitigation": "Upgrade kin-openapi to version 0.146.0 or later. Until upgraded, do not ingest untrusted OpenAPI specifications and reject response-header definitions that use content in place of a schema.",
  "vendor": "getkin",
  "product": "kin-openapi",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 0.145.0"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "v0.146.0"
      ],
      "package_name": "github.com/getkin/kin-openapi",
      "purl": "pkg:golang/github.com/getkin/kin-openapi"
    }
  ],
  "cwes": [
    476
  ],
  "cvss_score": 8.2,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
  "epss_score": 0.0037,
  "epss_percentile": 0.2963,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 16.410855616666666,
  "t0_at": "2026-10-15T15:50:37.453000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-08-03T11:03:59+00:00",
      "days": -73.19905616898149,
      "is_lower_bound": false,
      "measured_at": "2026-10-15T15:50:37.453000+00:00",
      "url": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-74vm-87hj-r66f"
    },
    "trigger_signal": {
      "at": "2026-10-15T15:50:37.453000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-15T15:50:37.453000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-100349"
    }
  }
}