CVE-2026-44025
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductFluentd
PublishedJul 8, 2026
First seenJul 8, 2026
Weakness typeCWE-306Missing authentication for critical function
How to fix
Update
- fluentd fluentd1.19.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fluentd fluentd | v < 1.19.3 | 1.19.3 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.