The squid LDAP bind password is passed to basic_ldap_auth on its command line.
Location
data/templates/squid/squid.conf.j2:54
Problem
-w "<password>" is visible in /proc/*/cmdline to every user; -W <file> is available and unused.
Impact
Directory service credential disclosed to all local users.
Suggested fix
Write the password to a 0600 file and use -W.