Eval injection vulnerability in tftp_api.rb in the TFTP module in the Smart-Proxy in Foreman before 1.10.4 and 1.11.x before 1.11.2 allows remote attackers to execute arbitrary code via the PXE template type portion of the PATH_INFO to tftp/.
https://github.com/theforeman/smart-proxy/commit/eef532aa668d656b9d61d9c6edf7c2505f3f43c7
https://access.redhat.com/errata/RHBA-2016:1501
http://www.openwall.com/lists/oss-security/2016/05/19/2