I get logs of entries of the following in the logs:
2026-08-30T17:30:01.076698+02:00 twentytwo CRON[205460]: PAM unable to dlopen(pam_kwallet5.so): /usr/lib/security/pam_kwallet5.so: Kann die Shared-Object-Datei nicht öffnen: Datei oder Verzeichnis nicht gefunden
2026-08-30T17:30:01.077676+02:00 twentytwo CRON[205460]: PAM adding faulty module: pam_kwallet5.so

In English:
Cannot load the shared object file: File or directory not found.

And yes, this file does not exist.

So either this is a missing dependency (hopefully not) or it should be
added to an appropriate logcheck rules (if it is harmless), so it
won't fill in the filtered logs.
--- /usr/bin/editor:
/usr/bin/vim.gtk3

--- /usr/bin/crontab:
-rwxr-sr-x 1 root crontab 51936 Apr 27 09:56 /usr/bin/crontab

--- /var/spool/cron:
drwxr-xr-x 3 root root 4096 Apr  3  2022 /var/spool/cron

--- /var/spool/cron/crontabs:
drwx-wx--T 2 root crontab 4096 Aug 30 17:13 /var/spool/cron/crontabs

--- /etc/cron.d:
drwxr-xr-x 2 root root 4096 Aug 30 06:07 /etc/cron.d

--- /etc/cron.daily:
drwxr-xr-x 2 root root 4096 Aug 29 09:25 /etc/cron.daily

--- /etc/cron.hourly:
drwxr-xr-x 2 root root 4096 May 17 16:02 /etc/cron.hourly

--- /etc/cron.monthly:
drwxr-xr-x 2 root root 4096 May 17 16:02 /etc/cron.monthly

--- /etc/cron.weekly:
drwxr-xr-x 2 root root 4096 Aug 30 08:09 /etc/cron.weekly

Hello Helge,

thank you for your bug report.

Unfortunately, I cannot easily reproduce this bug.

Please would you be kind enough to describe some minimal setting,
which may raise the bug you are describing ? This would give me an
opportunity to fix the misbehavior. I would be glad to include such a
setting in some test (for autopkgtests), in order to prevent future
regressions.

Best regards,			Georges.

Helge Kreutzmann a écrit :

Hello Georges,
Am Thu, Oct 15, 2026 at 05:02:01PM +0200 schrieb Georges Khaznadar:

You are welcome.

I'm not sure how to help you here.

If you prepare a chroot *without* pam_kwallet5.so, i.e.
libpam-kwallet5 installed, you should see the messages.

I noticed that libpam-kwallet5 seems to be required by quite a few
programmes, and that several programmes seem to expect it, however,
dugint my upgrade from Trixie, it was not installed / pulled in.

So maybe cron is also (silently) expecting libpam-kwallet5 to be
present?

Btw., cron itself seems to function fine, so maybe this is cosmetical
only?

Greetings

         Helge