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://snyk.io/vuln/SNYK-PYTHON-PYXDG-174562
https://lists.debian.org/debian-lts-announce/2021/08/msg00003.html
https://lists.debian.org/debian-lts-announce/2019/06/msg00006.html