ETK-2026-4199Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-4199",
  "cve_id": null,
  "display_id": "ETK-2026-4199",
  "ghsa_id": "GHSA-6jwq-xf8q-xcwh",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Algorithmic denial of service in brace-expansion",
  "summary": "brace-expansion can spend excessive CPU time processing specially formed untrusted brace patterns, blocking a Node.js event loop. Applications are affected when they expand attacker-supplied patterns directly or through minimatch or glob with brace expansion enabled.",
  "mitigation": "Upgrade brace-expansion to 5.0.13, 3.0.10, 2.1.8, 1.1.22 or later.",
  "vendor": "npm",
  "product": "npm:brace-expansion",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 1.1.22",
        ">= 2.0.0 < 2.1.8",
        ">= 3.0.0 < 3.0.10",
        ">= 4.0.0 < 5.0.13"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "5.0.13",
        "3.0.10",
        "2.1.8",
        "1.1.22"
      ],
      "package_name": "brace-expansion",
      "purl": "pkg:npm/brace-expansion"
    }
  ],
  "cwes": [
    400
  ],
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 12.975819116666667,
  "t0_at": null,
  "signals": {
    "trigger_signal": {
      "at": "2026-11-11T12:33:35+00:00",
      "days": -0.34828028658564814,
      "is_lower_bound": true,
      "measured_at": "2026-11-11T20:55:06.458331+00:00",
      "url": "https://github.com/juliangruber/brace-expansion/security/advisories/GHSA-6jwq-xf8q-xcwh"
    }
  }
}