61 行
4.1 KiB
JSON
61 行
4.1 KiB
JSON
{
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"canonical_id": "kibana--4d0ef3a07b",
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"system_id": "kibana",
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"display_name": "Kibana",
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"category": "platforms",
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"advisory_mode": "core",
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"title": "Metricbeat 8.19.13, 9.2.5 Security Update (ESA-2026-09)",
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"summary": "<p><strong>Memory Allocation with Excessive Size Value in Metricbeat Leading to Denial of Service</strong></p>\n<p>Memory Allocation with Excessive Size Value (CWE-789) in the Prometheus remote_write HTTP handler in Metricbeat can lead Denial of Service via Excessive Allocation (CAPEC-130).</p>\n<p><strong>Affected Versions:</strong></p>\n<ul>\n<li>8.x: All versions from 8.0.0 up to and including 8.19.12</li>\n<li>9.x: All versions from 9.0.0 up to and including 9.2.4</li>\n</ul>\n<p><strong>Affected Configurations:</strong><br>\nThe Prometheus <code>remote_write</code> module is not enabled by default in Metricbeat, so this issue only affects users who have enabled it.</p>\n<p><strong>Solutions and Mitigations:</strong></p>\n<p>The issue is resolved in version 8.19.13, 9.2.5 .</p>\n<p><strong>For Users that Cannot Upgrade:</strong></p>\n<ol>\n<li>Disable the remote_write module if it is not required for operations:\n<ul>\n<li>Remove or comment out the Prometheus <code>remote_write</code> configuration block in <code>metricbeat.yml</code></li>\n<li>Restart Metricbeat to apply changes</li>\n</ul>\n</li>\n<li>Restrict network access using firewall rules or network policies:\n<ul>\n<li>Limit access to the <code>remote_write</code> endpoint to trusted Prometheus server IP addresses only</li>\n<li>Use host: \"localhost\" binding if the Prometheus server runs on the same host</li>\n</ul>\n</li>\n</ol>\n<p><strong>Indicators of Compromise (IOC)</strong></p>\n<p>Log Patterns:</p>\n<ul>\n<li>Metricbeat process termination with \u201cout of memory\" messages in system logs</li>\n<li>Repeated Metricbeat crashes or restarts when the Prometheus <code>remote_write</code> module is enabled</li>\n<li>OOM events in kernel logs <code>dmesg</code> or container orchestration logs targeting the Metricbeat process</li>\n</ul>\n<p>Audit Trail Indicators:</p>\n<ul>\n<li>Sudden memory consumption spikes in Metricbeat process metrics immediately preceding process termination</li>\n<li>Network connections from unexpected or unauthorized source IP addresses to the <code>remote_write</code> endpoint port</li>\n</ul>\n<p><strong>Severity:</strong> CVSSv3.1: Medium ( 5.7 ) - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H<br>\n<strong>CVE ID</strong>: CVE-2026-26931<br>\n<strong>Problem Type:</strong> CWE-789 - Memory Allocation with Excessive Size Value<br>\n<strong>Impact:</strong> CAPEC-130 - Excessive Allocation</p>\n <p><small>1 post - 1 participant</small></p>\n <p><a href=\"https://discuss.elastic.co/t/metricbeat-8-19-13-9-2-5-security-update-esa-2026-09/385532\">Read full topic</a></p>",
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"published_at": "Thu, 19 Mar 2026 16:54:15 +0000",
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"updated_at": "Thu, 19 Mar 2026 16:54:15 +0000",
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"severity": "unknown",
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"cvss_score": null,
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"exploit_status": "unknown",
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"source_confidence": "official",
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"official_source_url": "https://discuss.elastic.co/t/metricbeat-8-19-13-9-2-5-security-update-esa-2026-09/385532",
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"secondary_source_urls": [],
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"aliases": [],
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"cve_ids": [],
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"ghsa_ids": [],
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"osv_ids": [],
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"affected_versions": [],
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"fixed_versions": [],
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"package_name": null,
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"render_markdown": false,
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"case_path": null,
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"secure_code_topics": [
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"authz-server-side-recheck",
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"xss-output-encoding",
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"proxy-trust-boundary",
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"plugin-extension-trust-policy"
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],
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"status": "triage",
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"triage_reasons": [
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"missing affected/fixed version details"
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],
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"verification_status": "triage-manual",
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"verification_mode": "synthetic",
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"last_verified_at": null,
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"last_run_id": null,
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"evidence_bundle": null,
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"historical_status": null,
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"latest_status": null,
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"browser_evidence": {
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"required": false,
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"present": false,
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"refs": []
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},
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"repro_profile_id": "xss-generic",
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"artifact_mode": "synthetic",
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"blocked_reason": null,
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"metadata": {
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"source_names": [
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"Elastic Security Announcements RSS"
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],
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"source_kinds": [
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"rss-feed"
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],
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"candidate_count": 1
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}
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}
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