CVE-2025-12970

The extract_name function in Fluent Bit in_docker input plugin copies container names into a fixed size stack buffer without validating length. An attacker who can create containers or control container names, can supply a long name that overflows the buffer, leading to process crash or arbitrary code execution.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://fluentbit.io/blog/2025/10/28/security-vulnerabilities-addressed-in-fluent-bit-v4.1-and-backported-to-v4.0/
https://www.oligo.security/blog/critical-vulnerabilities-in-fluent-bit-expose-cloud-environments-to-remote-takeover

Configurations

Configuration 1 (hide)

cpe:2.3:a:treasuredata:fluent_bit:4.1.0:*:*:*:*:*:*:*

History

18 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) La función 'extract_name' en el 'plugin' de entrada 'in_docker' de Fluent Bit copia nombres de 'contenedor'es en un búfer de pila de tamaño fijo sin validar la longitud. Un 'atacante' que puede crear 'contenedor'es o controlar nombres de 'contenedor'es, puede proporcionar un nombre largo que desborda el búfer, lo que lleva a un fallo del proceso o 'ejecución de código arbitrario'.

Information

Published : 2025-11-24 15:15

Updated : 2026-10-18 20:10

NVD link : CVE-2025-12970

Mitre link : CVE-2025-12970

CVE.ORG link : CVE-2025-12970

JSON object : View

Products Affected

treasuredata

fluent_bit

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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