P4Verified

CVE-2025-12969: fluent bit 4.1.0; +1 more affected products

CVE-2025-12969. CVSS 3.1 base score 6.5 (MEDIUM, Source advisory). EPSS 0.00613 (percentile 0.4763), scored 2026-10-06.

Affected technology

fluent bit · 4.1.0
treasuredata

Fluent Bit · 0 to before 4.0.13
FluentBit

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Remote attackers with network access can the Fluent Bit instance exposing the forward input to send unauthenticated data. Source advisory’s CVSS 3.1 assessment (base score 6.5/10) rates confidentiality and integrity impact as low; availability impact as none.

Published 2026-10-08 17:34:58.368457+00:00

CWE: CWE-306
CCR priority: 26.2 /100 (P4)
CVSS 3.1: 6.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N · Source advisory
EPSS: 0.00613 · percentile 0.47739 · 2026-10-08
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-08 17:36:22.845483+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-08 17:32:11.049884+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-12969.html