Fluent Bit in_docker Input Plugin Buffer Overflow Vulnerability Allowing Code Execution

Vulnerability

A buffer overflow vulnerability has been identified in the Fluent Bit in_docker input plugin, specifically in version 4.1.0. The issue arises in the extract_name function, which copies container names into a fixed-size stack buffer without proper length validation. This flaw allows an attacker who can create containers or control container names to supply a long name that overflows the buffer, potentially leading to a process crash or arbitrary code execution.

Impact

Exploitation of this vulnerability can result in a process crash or arbitrary code execution.

Added: Nov 24, 2025, 3:20 PM
Updated: Nov 24, 2025, 5:26 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
10.0
exploitability
5.2
remediation
0.0
relevance
1.1
threat
0.0
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.