CVE-2019-12761: Code injection in Category element of a Menu XML document
A code injection issue was discovered in PyXDG before 0.26 via crafted Python code in a Category element of a Menu XML document in a .menu file. XDG_CONFIG_DIRS must be set up to trigger xdg.Menu.parse parsing within the directory containing this file. This is due to a lack of sanitization in xdg/Menu.py before an eval call.
— https://security-tracker.debian.org/tracker/CVE-2019-12761