CVE-2026-102992

{
  "etk_id": "ETK-2026-144",
  "cve_id": "CVE-2026-102992",
  "display_id": "CVE-2026-102992",
  "ghsa_id": "GHSA-67c8-pqhq-4rmx",
  "euvd_id": "EUVD-2026-90364",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Prototype-pollution gadget in Piscina ThreadPool options",
  "summary": "Piscina versions before 4.9.4, 5.3.2, and 6.0.0-rc.5 can read security-sensitive worker-pool settings inherited from Object.prototype. An attacker who can first pollute Object.prototype may cause code to run in worker threads or during task scheduling, or alter worker environment settings.",
  "mitigation": "Upgrade piscina to 4.9.4, 5.3.2, or 6.0.0-rc.5, as appropriate for your release line. Also remediate prototype-pollution paths in the application and its dependencies.",
  "vendor": "piscinajs",
  "product": "piscina",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 5.0.0, < 5.3.2"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "5.3.2"
      ],
      "package_name": "piscina",
      "purl": "pkg:npm/piscina"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 4.9.4"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "4.9.4"
      ],
      "package_name": "piscina",
      "purl": "pkg:npm/piscina"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 6.0.0-rc.1, < 6.0.0-rc.5"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "6.0.0-rc.5"
      ],
      "package_name": "piscina",
      "purl": "pkg:npm/piscina"
    }
  ],
  "cwes": [
    1321
  ],
  "cvss_score": 9.2,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
  "epss_score": 0.0043,
  "epss_percentile": 0.364,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 8.587923266666667,
  "t0_at": "2026-09-30T19:50:18.036000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-10-01T15:03:33+00:00",
      "days": 0.8008676388888889,
      "is_lower_bound": false,
      "measured_at": "2026-09-30T19:50:18.036000+00:00",
      "url": "https://github.com/advisories/GHSA-67c8-pqhq-4rmx"
    },
    "trigger_signal": {
      "at": "2026-09-30T19:50:18.036000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-09-30T19:50:18.036000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-102992"
    }
  }
}