CVE-2014-9489
The gollum-grit_adapter Ruby gem dependency in gollum before 3.1.1 and the gollum-lib gem dependency in gollum-lib before 4.0.1 when the string "master" is in any of the wiki documents, allows remote authenticated users to execute arbitrary code via the -O or –open-files-in-pager flags.
Source: CVE-2014-9489