CVE-2026-92957

{
  "etk_id": "ETK-2026-254",
  "cve_id": "CVE-2026-92957",
  "display_id": "CVE-2026-92957",
  "ghsa_id": "GHSA-28q4-xrqh-9479",
  "euvd_id": "EUVD-2026-81606",
  "status": "published",
  "anchor_state": "anchored",
  "title": "NodeVM builtin denylist normalization flaw in vm2",
  "summary": "vm2 NodeVM is affected when a wildcard builtin policy uses node:-prefixed negative entries, such as a rule intended to deny child_process. Sandboxed code may then access the host child_process module and its process-spawning interfaces. Exploitation requires an application to run untrusted code with the affected NodeVM configuration.",
  "mitigation": "Upgrade vm2 to version 3.11.7 or later. Until upgraded, use canonical builtin names in deny rules, such as -child_process rather than -node:child_process.",
  "vendor": "npm",
  "product": "npm:vm2",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 3.11.6"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "3.11.7"
      ],
      "package_name": "vm2",
      "purl": "pkg:npm/vm2"
    }
  ],
  "cwes": null,
  "cvss_score": 9.9,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "epss_score": 0.0054,
  "epss_percentile": 0.4412,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "mechanism_verified",
  "exploit": false,
  "pipeline_minutes": 18.71078175,
  "t0_at": "2026-09-17T13:46:14.875000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-01T16:37:10.954866+00:00",
      "days": 14.118704628078703,
      "is_lower_bound": false,
      "measured_at": "2026-09-17T13:46:14.875000+00:00",
      "url": null
    },
    "public_poc": {
      "at": "2026-10-01T15:36:01+00:00",
      "days": 14.076228298611111,
      "is_lower_bound": false,
      "measured_at": "2026-09-17T13:46:14.875000+00:00",
      "url": "https://github.com/advisories/GHSA-8686-vhfx-7r3j"
    },
    "trigger_signal": {
      "at": "2026-09-17T13:46:14.875000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-09-17T13:46:14.875000+00:00",
      "url": "https://github.com/advisories/GHSA-8686-vhfx-7r3j"
    }
  }
}