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8.8
HIGH CVSS 3.1
CVE-2025-12970
CVE-2025-12970
Description

The extract_name function in Fluent Bit in_docker input plugin copies container names into a fixed size stack buffer without validating length. An attacker who can create containers or control container names, can supply a long name that overflows the buffer, leading to process crash or arbitrary code execution.

INFO

Published Date :

Nov. 24, 2025, 3:15 p.m.

Last Modified :

Nov. 28, 2025, 6:15 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-12970 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Treasuredata fluent_bit
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Update Fluent Bit to patch the buffer overflow vulnerability in the in_docker input plugin.
  • Update Fluent Bit to the latest version.
  • Rebuild the plugin if compiled from source.
  • Ensure container names are validated.
  • Limit container creation privileges.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-12970.

URL Resource
https://fluentbit.io/blog/2025/10/28/security-vulnerabilities-addressed-in-fluent-bit-v4.1-and-backported-to-v4.0/
https://www.oligo.security/blog/critical-vulnerabilities-in-fluent-bit-expose-cloud-environments-to-remote-takeover
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-12970 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-12970 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-92: Forced Integer Overflow Forced Integer Overflow CAPEC-100: Overflow Buffers Overflow Buffers

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-12970 vulnerability anywhere in the article.

  • CybersecurityNews
Critical FluentBit Vulnerabilities Let Attackers to Cloud Environments Remotely

A new chain of five critical vulnerabilities discovered in Fluent Bit has exposed billions of containerized environments to remote compromise. Fluent Bit, an open-source logging and telemetry agent de ... Read more

Published Date: Nov 25, 2025 (2 weeks, 6 days ago)
  • The Register
Years-old bugs in open source tool left every major cloud open to disruption

A series of "trivial-to-exploit" vulnerabilities in Fluent Bit, an open source log collection tool that runs in every major cloud and AI lab, was left open for years, giving attackers an exploit chain ... Read more

Published Date: Nov 24, 2025 (3 weeks ago)
  • The Hacker News
New Fluent Bit Flaws Expose Cloud to RCE and Stealthy Infrastructure Intrusions

Nov 24, 2025Ravie LakshmananVulnerability / Container Security Cybersecurity researchers have discovered five vulnerabilities in Fluent Bit, an open-source and lightweight telemetry agent, that coul ... Read more

Published Date: Nov 24, 2025 (3 weeks ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-12970 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    Nov. 28, 2025

    Action Type Old Value New Value
    Added Reference https://fluentbit.io/blog/2025/10/28/security-vulnerabilities-addressed-in-fluent-bit-v4.1-and-backported-to-v4.0/
    Added Reference https://www.oligo.security/blog/critical-vulnerabilities-in-fluent-bit-expose-cloud-environments-to-remote-takeover
    Removed Reference https://fluentbit.io/announcements/v4.1.0/
    Removed Reference Type https://fluentbit.io/announcements/v4.1.0/ Types: Release Notes
  • Initial Analysis by [email protected]

    Nov. 28, 2025

    Action Type Old Value New Value
    Added CWE CWE-120
    Added CPE Configuration OR *cpe:2.3:a:treasuredata:fluent_bit:4.1.0:*:*:*:*:*:*:*
    Added Reference Type CERT/CC: https://fluentbit.io/announcements/v4.1.0/ Types: Release Notes
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Nov. 24, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • New CVE Received by [email protected]

    Nov. 24, 2025

    Action Type Old Value New Value
    Added Description The extract_name function in Fluent Bit in_docker input plugin copies container names into a fixed size stack buffer without validating length. An attacker who can create containers or control container names, can supply a long name that overflows the buffer, leading to process crash or arbitrary code execution.
    Added Reference https://fluentbit.io/announcements/v4.1.0/
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact