Fluentd: Exposure of Sensitive Information via Monitor Agent API
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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-44025US | —OT elevated | — | ||
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_a… | ||||
02
references
External citations — patches, advisories, analysis.
- https://github.com/fluent/fluentd/commit/990921518971699b9a97441970674d1800e29177FIX
- https://github.com/fluent/fluentd/pull/5392FIX
- https://github.com/fluent/fluentd/releases/tag/v1.19.3ARTICLE
- https://github.com/fluent/fluentd/security/advisories/GHSA-pr7j-96cj-549hADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2026-44025WEB
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