https://seclists.org/oss-sec/2025/q4/227: 5 CVE's fixed in Fluent Bit
Published Dec 2, 2025
·Updated
Affected Software
1 affected component
Fluent Bit Fluent Bit>=4.0.12<=4.2.0
Frequently Asked Questions
1
What is the severity of CVE-2025-XXXX?
The severity of CVE-2025-XXXX is classified as critical due to the potential for remote code execution.
2
How do I fix CVE-2025-XXXX?
You can fix CVE-2025-XXXX by upgrading to Fluent Bit version 4.2.0 or later.
3
What versions of Fluent Bit are affected by CVE-2025-XXXX?
CVE-2025-XXXX affects Fluent Bit versions prior to 4.0.12.
4
Is there a mitigation available for CVE-2025-XXXX?
No specific mitigation steps are available for CVE-2025-XXXX other than upgrading.
5
What components of Fluent Bit are impacted by CVE-2025-XXXX?
CVE-2025-XXXX impacts the core log processing components of Fluent Bit.