{
  "canonical_id": "kibana--4bfdbe9da9",
  "system_id": "kibana",
  "display_name": "Kibana",
  "category": "platforms",
  "advisory_mode": "core",
  "title": "Logstash 8.19.10, 9.1.10, 9.2.4 Security Update (ESA-2026-06)",
  "summary": "<p><strong>Sensitive Information in Resource Not Removed Before Reuse in Logstash Leading to Access to Sensitive Information</strong></p>\n<p>Dependency on Vulnerable Third-Party Component (CWE-1395) exists in org.lz4:lz4-java decompression library used by logstash-integration-kafka plugin in Logstash that could allow an attacker to access sensitive information from previous buffer contents via Input Data Manipulation (CAPEC-153). Exploitation requires the attacker to produce specially crafted, malformed compressed input to a Kafka topic consumed by Logstash, causing the decompression process to expose residual data from reused output buffers that were not cleared between operations - CVE-2025-66566.</p>\n<p><strong>Affected Versions:</strong></p>\n<ul>\n<li>8.x: All versions from 8.15.0 up to and including 8.19.9</li>\n<li>9.x:\n<ul>\n<li>All versions from 9.0.0 up to and including 9.1.9</li>\n<li>All versions from 9.2.0 up to and including 9.2.3</li>\n</ul>\n</li>\n</ul>\n<p><strong>Affected Configurations:</strong><br>\nThis vulnerability is limited to Logstash deployments that have the logstash-integration-kafka plugin configured to consume from a Kafka topic to which the attacker can publish messages. The attacker requires network access to the Kafka cluster and sufficient Kafka-level permissions (e.g., Kafka ACLs, if configured) to publish messages to the target topic.</p>\n<p><strong>Solutions and Mitigations:</strong></p>\n<p>The issue is resolved in version 8.19.10, 9.1.10, 9.2.4.</p>\n<p><strong>For Users that Cannot Upgrade:</strong></p>\n<p>The attacker requires network access to the Kafka cluster and sufficient Kafka-level permissions (e.g., Kafka ACLs, if configured) to publish messages to the target topic.</p>\n<p>Manually update the logstash-integration-kafka plugin to version 11.8.1 or higher using: bin/logstash-plugin update logstash-integration-kafka</p>\n<p><strong>Severity:</strong> CVSSv3.1: Medium ( 5.9 ) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N<br>\n<strong>CVE ID</strong>: CVE-2025-66566<br>\n<strong>Problem Type:</strong> CWE-226 - Sensitive Information in Resource Not Removed Before Reuse<br>\n<strong>Impact:</strong> CAPEC-153 - Input Data Manipulation</p>\n            <p><small>1 post - 1 participant</small></p>\n            <p><a href=\"https://discuss.elastic.co/t/logstash-8-19-10-9-1-10-9-2-4-security-update-esa-2026-06/385531\">Read full topic</a></p>",
  "published_at": "Thu, 19 Mar 2026 16:53:51 +0000",
  "updated_at": "Thu, 19 Mar 2026 16:53:51 +0000",
  "severity": "unknown",
  "cvss_score": null,
  "exploit_status": "unknown",
  "source_confidence": "official",
  "official_source_url": "https://discuss.elastic.co/t/logstash-8-19-10-9-1-10-9-2-4-security-update-esa-2026-06/385531",
  "secondary_source_urls": [],
  "aliases": [],
  "cve_ids": [],
  "ghsa_ids": [],
  "osv_ids": [],
  "affected_versions": [],
  "fixed_versions": [],
  "package_name": null,
  "render_markdown": false,
  "case_path": null,
  "secure_code_topics": [
    "authz-server-side-recheck",
    "xss-output-encoding",
    "proxy-trust-boundary",
    "plugin-extension-trust-policy",
    "dependency-upgrade-policy"
  ],
  "status": "triage",
  "triage_reasons": [
    "missing affected/fixed version details"
  ],
  "verification_status": "triage-manual",
  "verification_mode": "synthetic",
  "last_verified_at": null,
  "last_run_id": null,
  "evidence_bundle": null,
  "historical_status": null,
  "latest_status": null,
  "browser_evidence": {
    "required": false,
    "present": false,
    "refs": []
  },
  "repro_profile_id": "xss-generic",
  "artifact_mode": "synthetic",
  "blocked_reason": null,
  "metadata": {
    "source_names": [
      "Elastic Security Announcements RSS"
    ],
    "source_kinds": [
      "rss-feed"
    ],
    "candidate_count": 1
  }
}