High 7.5Published Jul 8, 2026

CVE-2026-44025Fluentd: Exposure of Sensitive Information via Monitor Agent API

Updated under an hour ago (Oct 27, 2026, 9:40 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for fluentd

Exploited in the last 30 days

Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS, SaaS, Hadoop and so on. Prior to 1.19.3, Fluentd's Monitor Agent plugin in_monitor_agent exposes internal metrics and plugin information via a REST API, and responses from /api/plugins.json and related endpoints unintentionally include internal instance variables that may contain database passwords, API keys, or cloud credentials. This issue is fixed in version 1.19.3.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-306
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jul 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

fluent fluentd fluent:fluentd (from the name)	before 1.19.3	CNA record
fluentd fluentd fluentd:fluentd	before 1.19.3	NVD

References

References

https://github.com/fluent/fluentd/security/advisories/GHSA-pr7j-96cj-549h	x-refsource-confirm, patch, vendor-advisory
https://github.com/fluent/fluentd/pull/5392	x-refsource-misc, issue-tracking, patch
https://github.com/fluent/fluentd/commit/990921518971699b9a97441970674d1800e29177	x-refsource-misc, patch
https://github.com/fluent/fluentd/releases/tag/v1.19.3	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.