ark before 16.12.1 might allow remote attackers to execute arbitrary code via an executable in an archive, related to associated applications.
https://security.gentoo.org/glsa/201701-69
https://cgit.kde.org/ark.git/commit/?id=82fdfd24d46966a117fa625b68784735a40f9065
https://bugs.kde.org/show_bug.cgi?id=374572