Fluent Bit

Fluent Bit
Fluent Bit
Developer	Fluentd Project
Written in	C
Type	Logging
License	Apache License
Website	fluentbit.io
Repository	github.com/fluent/fluent-bit

Fluent Bit (styled as fluentbit) is a software project for logging. It is commonly utilized in Kubernetes clusters.

In November 2025, researchers at Oligo Security disclosed five vulnerabilities in Fluent Bit, including issues that could enable authentication bypass, log manipulation, denial-of-service attacks, and, in some configurations, remote code execution.

References

↑ Wilkins, Phil (2024). Logs and Telemetry: Using Fluent Bit, Kubernetes, Streaming and More (1st ed.). New York: Manning Publications Co. LLC. ISBN 978-1-63835-651-6.
↑ Silva, Eduardo (2016-01-21). "Data Collection for Embedded Linux and IoT with Open Source Fluent Bit". Linux.com. Retrieved 2025-04-02.
↑ "Years-old bugs in open source took out major clouds, at risk". The Register. 24 November 2025.

External links

Official website
fluent-bit on GitHub

[1] Wilkins, Phil (2024). Logs and Telemetry: Using Fluent Bit, Kubernetes, Streaming and More (1st ed.). New York: Manning Publications Co. LLC. ISBN 978-1-63835-651-6.

[2] Silva, Eduardo (2016-01-21). "Data Collection for Embedded Linux and IoT with Open Source Fluent Bit". Linux.com. Retrieved 2025-04-02.

[3] "Years-old bugs in open source took out major clouds, at risk". The Register. 24 November 2025.