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, the Fluentd out_http output plugin allows placeholders such as ${tag} in the endpoint configuration parameter, and if a placeholder value is derived from untrusted input an attacker can control the destination hostname of outbound HTTP requests and force requests to arbitrary internal services. This issue is fixed in version 1.19.3.
Metrics
Affected Vendors & Products
References
History
Fri, 10 Jul 2026 09:30:00 +0000
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| First Time appeared |
Fluentd
Fluentd fluentd |
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| Vendors & Products |
Fluentd
Fluentd fluentd |
Thu, 09 Jul 2026 16:30:00 +0000
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| Metrics |
ssvc
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Wed, 08 Jul 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
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| 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, the Fluentd out_http output plugin allows placeholders such as ${tag} in the endpoint configuration parameter, and if a placeholder value is derived from untrusted input an attacker can control the destination hostname of outbound HTTP requests and force requests to arbitrary internal services. This issue is fixed in version 1.19.3. | |
| Title | Fluentd: Server-Side Request Forgery (SSRF) via Placeholder Expansion in `out_http` | |
| Weaknesses | CWE-918 | |
| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-07-08T21:25:43.892Z
Updated: 2026-07-09T14:40:31.700Z
Reserved: 2026-05-05T14:39:34.922Z
Link: CVE-2026-44161
Updated: 2026-07-09T14:37:58.503Z
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