kinit in KDE Frameworks before 5.23.0 uses weak permissions (644) for /tmp/xauth-xxx-_y, which allows local users to obtain X11 cookies of other users and consequently capture keystrokes and possibly gain privileges by reading the file.
{ "binaries": [ { "binary_version": "5.18.0-0ubuntu1.1", "binary_name": "kinit" }, { "binary_version": "5.18.0-0ubuntu1.1", "binary_name": "kinit-dev" } ], "availability": "No subscription required" }