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Critical Vulnerabilities Found in Fluent Bit Logging Tool

Critical Vulnerabilities Found in Fluent Bit Logging Tool

First seen 2 Dec 2025, 18:33 UTC

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ThreatCluster AI
ThreatCluster March 12, 2026 at 13:27 UTC

Fluent Bit, a widely used log-processing tool, has been found vulnerable to multiple critical security flaws that could allow attackers to bypass authentication, execute remote code, and disrupt cloud services. Discovered by Oligo Security, these vulnerabilities affect versions older than 4.1.1 and 4.0.12 and have been present for years, posing risks to various sectors including banking and cloud computing.

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