CentOS Errata and Bugfix Advisory 2015:2007 

Upstream details at : https://rhn.redhat.com/errata/RHBA-2015-2007.html

The following updated files have been uploaded and are currently 
syncing to the mirrors: ( sha256sum Filename ) 

i386:
98dcf5cbc9a2bebf9157e9b5c0f2eeff5d8b1f67f42cab86f3112e295314be83  zsh-4.3.11-4.el6.centos.1.i686.rpm
349384bfa70cdb1d65f92bf0606da048f050a0530d83543f9e0ab2ed33131cec  zsh-html-4.3.11-4.el6.centos.1.i686.rpm

x86_64:
87bfecdd0d8c8ffac26edf1f7363f5186145dbf2eaf9cfb719c9fad46c4dbce1  zsh-4.3.11-4.el6.centos.1.x86_64.rpm
967110920ae22eec87802f21692e417f99a15db4d2ded3f929273a5409b62d87  zsh-html-4.3.11-4.el6.centos.1.x86_64.rpm

Source:
d00ccabe54168e50cae8c3a9214582d6d9389a84b22b5910090f4e4a3ec58c88  zsh-4.3.11-4.el6.centos.1.src.rpm