Fluent Bit — Cyber Threats, Attacks & Incidents

Threat entity extracted from intelligence sources

Frequency
8
occurrences
First Seen
November 24, 2025
Last Seen
December 6, 2025

Fluent Bit is an open-source, lightweight log processor and forwarder used as a logging agent in cloud-native environments.

Overview

Fluent Bit is an open-source, lightweight log processor and forwarder used as a logging agent in cloud-native environments. In late 2025, multiple critical vulnerabilities were disclosed that could enable remote and local exploitation, including stack buffer overflow, authentication bypass, and path traversal flaws, risking cloud environments and the integrity of logging pipelines.

Related Threat Clusters

Recent Intelligence Reports

  • CVE-2025-29477 An issue in fluent-bit v.3.7.2 allows a local attacker to cause a denial of service via the function consume_event. — Api.Msrc.Microsoft · December 6, 2025
  • Critical Fluent Bit vulnerabilities discovered — Scworld · November 25, 2025
  • Fluent Bit vulnerabilities could enable full cloud takeover — Csoonline · November 25, 2025
  • Critical Fluent Bit Vulnerabilities Allow Remote Attacks on Cloud Environments — Gbhackers · November 25, 2025
  • Years-old bugs in open source took out major clouds at risk — Theregister · November 24, 2025
  • Years — Theregister · November 24, 2025
  • Flaws Expose Risks in Fluent Bit Logging Agent — Infosecurity-Magazine · November 24, 2025
  • VU#761751: fluentbit contains stack buffer overflow, authentication bypass, and path traversal flaws — Kb.Cert · November 24, 2025

CVSS v3.1 Breakdown