CVE-2025-12972 (GCVE-0-2025-12972)

Vulnerability from cvelistv5 – Published: 2025-11-24 14:40 – Updated: 2026-01-07 15:36
VLAI
Title
CVE-2025-12972
Summary
Fluent Bit out_file plugin does not properly sanitize tag values when deriving output file names. When the File option is omitted, the plugin uses untrusted tag input to construct file paths. This allows attackers with network access to craft tags containing path traversal sequences that cause Fluent Bit to write files outside the intended output directory.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-24 19:09 UTC
CWE
Assigner
certcc CNA under the mitre root
CNA scorecard E 42/100 over 158 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
FluentBit Fluent Bit Affected: 0 , < 4.0.12 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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