CentOS Errata and Security Advisory 2006:0577
https://rhn.redhat.com/errata/RHSA-2006-0577.html
The following updated files have been uploaded and are currently syncing to the mirrors:
i386: mutt-1.4.1-11.rhel4.i386.rpm
src: mutt-1.4.1-11.rhel4.src.rpm