When set up to print to a shared printer via Samba, CUPS will authenticate with that shared printer using a user name and password. By default, the user name and password used to connect to the Samba share will be stored in the log file.
See the cups BTS entry for more information. http://www.cups.org/str.php?L920
Created attachment 104751 [details] Upstream patch
This is now public, via http://secunia.com/advisories/12690/
RHSA-2004:543
An errata has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2004-543.html