CVE-2026-107909

{
  "etk_id": "ETK-2026-1051",
  "cve_id": "CVE-2026-107909",
  "display_id": "CVE-2026-107909",
  "ghsa_id": "GHSA-x67x-q5pm-p9h7",
  "euvd_id": "EUVD-2026-95486",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unauthenticated heap out-of-bounds write in FalkorDB",
  "summary": "FalkorDB versions before 4.20.0 are affected by a heap out-of-bounds write in WebSocket frame handling for the Bolt endpoint. A remote unauthenticated attacker may cause denial of service and potentially corrupt heap memory when the Bolt endpoint is enabled.",
  "mitigation": "Upgrade FalkorDB to version 4.20.0 or later. If an immediate upgrade is not possible, disable the Bolt endpoint by ensuring BOLT_PORT is not enabled.",
  "vendor": "FalkorDB",
  "product": "FalkorDB",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 4.20.0"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "4.20.0"
      ],
      "package_name": "FalkorDB",
      "purl": null
    }
  ],
  "cwes": [
    787
  ],
  "cvss_score": 8.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
  "epss_score": 0.0044,
  "epss_percentile": 0.3659,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 68.19356631666666,
  "t0_at": "2026-10-09T05:08:12.082000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-09T07:03:13.617618+00:00",
      "days": 0.07987888446759259,
      "is_lower_bound": false,
      "measured_at": "2026-10-09T05:08:12.082000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-09T05:08:12.082000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-09T05:08:12.082000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-107909"
    }
  }
}