CVE-2026-114143

{
  "etk_id": "ETK-2026-2474",
  "cve_id": "CVE-2026-114143",
  "display_id": "CVE-2026-114143",
  "ghsa_id": "GHSA-9j65-hcg3-gc64",
  "euvd_id": "EUVD-2026-107555",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Quadratic parsing denial of service in npm toml",
  "summary": "npm `toml` versions before 5.0.1 perform quadratic work when parsing TOML documents with very long dotted keys, table paths, or inline-table keys. An attacker able to supply TOML for parsing can block the Node.js event loop or cause the process to terminate through memory exhaustion. The `maxDepth` option does not limit dotted-key segment counts.",
  "mitigation": "Upgrade the npm `toml` package to version 5.0.1 or later. Until upgraded, reject untrusted TOML or enforce application-level limits on input size and dotted-key segment counts before parsing.",
  "vendor": "npm",
  "product": "npm:toml",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 5.0.0"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "5.0.1"
      ],
      "package_name": "toml",
      "purl": "pkg:npm/toml"
    }
  ],
  "cwes": null,
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 8.49012465,
  "t0_at": "2026-10-21T20:31:01.539000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-22T17:55:10.773505+00:00",
      "days": 0.8917735475115741,
      "is_lower_bound": false,
      "measured_at": "2026-10-21T20:31:01.539000+00:00",
      "url": null
    },
    "public_poc": {
      "at": "2026-10-22T16:38:06+00:00",
      "days": 0.8382460763888889,
      "is_lower_bound": false,
      "measured_at": "2026-10-21T20:31:01.539000+00:00",
      "url": "https://github.com/advisories/GHSA-9j65-hcg3-gc64"
    },
    "trigger_signal": {
      "at": "2026-10-21T20:31:01.539000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-21T20:31:01.539000+00:00",
      "url": "https://github.com/advisories/GHSA-9j65-hcg3-gc64"
    }
  }
}