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Critical Vulnerabilities in Fluent Bit Expose Cloud Environments to Remote Attacks

First seen 25 Nov 2025, 14:26 UTC • •

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ThreatCluster •March 12, 2026 at 13:27 UTC

Five critical vulnerabilities in Fluent Bit, an open-source logging tool used in cloud infrastructure, have been discovered, potentially allowing attackers to compromise billions of containerized environments remotely. The vulnerabilities affect systems across various sectors, including banking and cloud platforms, highlighting the widespread deployment of Fluent Bit, which has been utilized over 15 billion times globally.

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