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Date: Tue, 30 Apr 2024 09:41:31 +0200
From: Salvatore Bonaccorso <>
Subject: Re: libksieve (used by kmail/kontact) sent password
 as username

On Thu, Apr 25, 2024 at 06:10:54PM +0200, Jonas Schäfer wrote:
> Hello list,
> Managesieve is a protocol to configure the email filtering system Sieve via 
> TCP/IP. It is typically authenticated just like IMAP is. The managesieve 
> client implementation in KDE (libksieve) had a bug which used the password as 
> username.
> That exposed the password in plaintext server logs, as usernames are commonly 
> logged on failed login attempts.
> This bug has existed for several years and made it into multiple Debian 
> releases. It has only recently been fixed upstream [1] and even more recently 
> been fixed in Debian [2] (stable package updates still pending). As this bug 
> has been documented in the internet at various places [3] [4] but I haven't 
> seen any mention of it here yet, I thought sharing it here made sense.
> As far as I know, no CVE has been allocated for this.

FTR, was assigned for
this issue.


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