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The vulnerability of the out_file plugin of the Fluent Bit log collection and processing tool allows a malicious actor to write any file outside of the target directory.

🗓️ 08 Dec 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec
 bdu_fstec
🔗 bdu.fstec.ru👁 2 Views

Fluent Bit out_file plugin vulnerability allows writing files outside the target directory due to improper path restrictions.

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08 Apr 2026 00:00Current
6.2Medium risk
Vulners AI Score6.2
CVSS 25
CVSS 35.3
EPSS0.00651
2