Critical Vulnerabilities Found in Fluent Bit Logging Agent

First seen 24 Nov 2025, 15:26 UTC • Kb.Cert

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Cybersecurity researchers have identified critical vulnerabilities in Fluent Bit, a logging agent used extensively across various platforms, including banking and cloud services. The flaws could lead to authentication bypass, remote code execution, and denial of service, primarily affecting instances with network access. The vulnerabilities stem from issues in tag processing and plugin handling.

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Attack Flow

10 entities, 18 inferred relationships (STIX 2.1).

Technique (1)

Denial of Service

Organization (1)

Oligo Security

Vulnerability (5)

CVE-2025-12969
CVE-2025-12970
CVE-2025-12972
CVE-2025-12977
CVE-2025-12978

Affected Platform (2)

Fluent Bit
Kubernetes

Tool (1)

Docker

Relationships

Docker exploits CVE-2025-12969
Docker exploits CVE-2025-12970
Docker exploits CVE-2025-12972
Docker exploits CVE-2025-12977
Docker exploits CVE-2025-12978
CVE-2025-12969 targets Fluent Bit
CVE-2025-12969 targets Kubernetes
CVE-2025-12970 targets Fluent Bit
CVE-2025-12970 targets Kubernetes
CVE-2025-12972 targets Fluent Bit
CVE-2025-12972 targets Kubernetes
CVE-2025-12977 targets Fluent Bit
CVE-2025-12977 targets Kubernetes
CVE-2025-12978 targets Fluent Bit
CVE-2025-12978 targets Kubernetes
Denial of Service targets Fluent Bit
Denial of Service targets Kubernetes
CVE-2025-12969 related to Oligo Security

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Tracked Entities in This Story

Oligo Security Fluent Bit Kubernetes Financial

Critical Vulnerabilities Found in Fluent Bit Logging Agent

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Extracted Entities

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