CVE-2026-120495

{
  "etk_id": "ETK-2026-4163",
  "cve_id": "CVE-2026-120495",
  "display_id": "CVE-2026-120495",
  "ghsa_id": null,
  "euvd_id": "EUVD-2026-123351",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Path traversal in Checkmk Robotmk test service",
  "summary": "Checkmk's Synthetic Monitoring Robotmk service is affected by a path traversal issue in versions before 2.5.0p19 and 2.4.0p40, as well as the end-of-life 2.3.0 branch. An attacker able to control a monitored host's agent output may cause attacker-chosen files to be written and execute code as the Checkmk site user.",
  "mitigation": "Upgrade Checkmk to 2.5.0p19 or 2.4.0p40, as appropriate for the deployed branch. Move installations on the 2.3.0 end-of-life branch to a supported, patched release.",
  "vendor": "Checkmk GmbH",
  "product": "Checkmk",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.5.0, < 2.5.0p19",
        ">= 2.4.0, < 2.4.0p40",
        "2.3.0"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "2.5.0p19",
        "2.4.0p40"
      ],
      "package_name": "Checkmk",
      "purl": null
    }
  ],
  "cwes": [
    23
  ],
  "cvss_score": 9.4,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 29.04093035,
  "t0_at": "2026-11-11T10:46:33.920000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-11T10:46:33.920000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-11T10:46:33.920000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-120495"
    }
  }
}