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Message-ID: <5e016ff3-a121-4137-a5c5-b53f91f4ca91@greenbone.net>
Date: Tue, 2 Dec 2025 10:34:40 +0100
From: Christian Fischer <christian.fischer@...enbone.net>
To: oss-security@...ts.openwall.com
Subject: Re: 5 CVE's fixed in Fluent Bit

Hello,

On 12/1/25 9:15 PM, Christian Brabandt wrote:
> 
> On Mi, 26 Nov 2025, Alan Coopersmith wrote:
> 
>> https://fluentbit.io/blog/2025/10/28/security-vulnerabilities-addressed-in-fluent-bit-v4.1-and-backported-to-v4.0/
>> provides their analysis and information about fixes in versions 4.2, 4.1.1,
>> and 4.0.14, which are available from https://github.com/fluent/fluent-bit .
> 
> For the record, there is a typo in the above blog post. The backported
> fixed version is v4.0.13

there seems to be indeed some confusion/inconsistencies about the 
possible fixes:
1. [1] lists 4.2, 4.1.1 and 4.0.14 as fixes
2. [2] lists 4.0.12, 4.1.1 and 4.2.0 as fixes
3. In this thread 4.0.13 (among 4.1.1 and 4.2.0) is now listed as a fix

But if we check [3] version 4.0.13 only contains two changelog entries 
shared with version 4.1.1. Furthermore 4.0.12 was released more closely 
to 4.1.1 then 4.0.13 so the fixed versions on [2] might be the correct 
ones (4.0.12, 4.1.1 and 4.2.0).

Regards,

[1] 
https://fluentbit.io/blog/2025/10/28/security-vulnerabilities-addressed-in-fluent-bit-v4.1-and-backported-to-v4.0/
[2] https://kb.cert.org/vuls/id/761751
[3] https://github.com/fluent/fluent-bit/releases

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