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Critical Fluent Bit bug affects all major cloud providers, say researchers

ID: 927c55c1-b49a-53b9-9587-3c88ae7810fe

STIX ID: report--927c55c1-b49a-53b9-9587-3c88ae7810fe

Feed Name: The Register (Security)

Threat Score
70/100

Date Published: 2024-05-21

Date Updated: 2026-04-26

Author: Connor Jones

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Tenable disclosed CVE-2024-4323 in Fluent Bit (affecting versions 2.0.7–3.0.3), a monitoring-API integer-handling flaw that reliably enables DoS and can leak adjacent memory (partial secrets); RCE is considered possible but environment-dependent and not demonstrated. Tenable published a PoC crash, recommends upgrading to 3.0.4 or limiting/disabling the vulnerable endpoints, and has notified major cloud providers.

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