Skip to main content
← All vulnerabilities
CVE-2025-12969

CVE-2025-12969

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.0.13
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

Fluent Bit in_forward input plugin does not properly enforce the security.users authentication mechanism under certain configuration conditions. This allows remote attackers with network access to the Fluent Bit instance exposing the forward input to send unauthenticated data. By bypassing authentication controls, attackers can inject forged log records, flood alerting systems, or manipulate routing decisions, compromising the authenticity and integrity of ingested logs.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • FluentBit Fluent Bit

    fixed in 4.0.13

References 2

fluentbit.io

oligo.security