CVE-2026-111821

{
  "etk_id": "ETK-2026-3485",
  "cve_id": "CVE-2026-111821",
  "display_id": "CVE-2026-111821",
  "ghsa_id": "GHSA-c86r-9hm3-5pcc",
  "euvd_id": "EUVD-2026-116826",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Input validation denial of service in Apache ActiveMQ KahaDB",
  "summary": "Apache ActiveMQ brokers using the KahaDB store are affected in versions 6.0.0 through 6.3.2 and versions before 5.19.12. A client able to create durable subscriptions can cause the broker to stop and remain unable to restart normally. Exploitation requires access to create a durable subscription on an affected KahaDB-backed broker.",
  "mitigation": "Upgrade Apache ActiveMQ and the KahaDB store to 6.3.3 or 5.19.12 or later. Until upgraded, restrict durable-subscription creation to trusted clients.",
  "vendor": "Apache Software Foundation",
  "product": "Apache ActiveMQ",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 6.0.0, < 6.3.3",
        ">= 0, < 5.19.12"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "6.3.3",
        "5.19.12"
      ],
      "package_name": "org.apache.activemq:apache-activemq",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 6.0.0, < 6.3.3",
        ">= 0, < 5.19.12"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "6.3.3",
        "5.19.12"
      ],
      "package_name": "org.apache.activemq:activemq-kahadb-store",
      "purl": null
    }
  ],
  "cwes": [
    20
  ],
  "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": 50.45017298333333,
  "t0_at": "2026-11-04T10:10:31.596000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-04T11:21:15.850962+00:00",
      "days": 0.04912332131944445,
      "is_lower_bound": false,
      "measured_at": "2026-11-04T10:10:31.596000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-04T10:10:31.596000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-04T10:10:31.596000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-111821"
    }
  }
}