Auth bypass in Fluent Fluentd

CVE-2026-44025

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…

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-44025?
CVE-2026-44025 is a high-severity vulnerability in Fluent Fluentd, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-07-08.
How severe is CVE-2026-44025?
High severity. CVSS v3 base score is 7.5 out of 10.