CVE-2025-12970: Treasuredata Fluent Bit

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

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.

Affected products

• Treasuredata Fluent Bit: version 4.1.0 only

Published 2025-11-24. Last modified 2026-06-17.