CVE-2026-117618

{
  "etk_id": "ETK-2026-2888",
  "cve_id": "CVE-2026-117618",
  "display_id": "CVE-2026-117618",
  "ghsa_id": "GHSA-vrqw-5jr7-wx5r",
  "euvd_id": "EUVD-2026-112183",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unauthenticated administrator account race in Jenkins",
  "summary": "Jenkins 2.587 and earlier, including LTS 2.580.1 and earlier, mishandles the initial-account creation flow. An unauthenticated attacker may obtain an administrator account if they can access that flow while the initial user account is being replaced.",
  "mitigation": "Restrict network access to Jenkins' setup and initial-account creation interfaces, and perform initial-user replacement only from a trusted administrative network. Limit exposure until vendor upgrade guidance or a fixed release is available.",
  "vendor": "Jenkins Project",
  "product": "Jenkins",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Jenkins",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": null,
  "cvss_src": null,
  "cvss_vector": null,
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 20.857885266666667,
  "t0_at": "2026-10-28T16:48:32.556000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-28T17:46:31.097464+00:00",
      "days": 0.04026089657407408,
      "is_lower_bound": false,
      "measured_at": "2026-10-28T16:48:32.556000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-28T16:48:32.556000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-28T16:48:32.556000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-117618"
    }
  }
}