CVE-2025-12969 (GCVE-0-2025-12969)

Vulnerability from cvelistv5 – Published: 2025-11-24 14:41 – Updated: 2026-01-07 15:36
VLAI
Title
CVE-2025-12969
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.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-24 18:02 UTC
CWE
  • CWE-306 - Missing Authentication for Critical Function
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 , < 4.0.13 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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