The XML-RPC server in supervisor before 3.0.1, 3.1.x before 3.1.4, 3.2.x before 3.2.4, and 3.3.x before 3.3.3 allows remote authenticated users to execute arbitrary commands via a crafted XML-RPC request, related to nested supervisord namespace lookups.
https://www.tenable.com/blog/critical-vulnerability-fixes-available-for-juniper-devices
https://security.gentoo.org/glsa/201709-06
https://github.com/Supervisor/supervisor/issues/964
https://github.com/Supervisor/supervisor/blob/3.3.3/CHANGES.txt
https://github.com/Supervisor/supervisor/blob/3.2.4/CHANGES.txt
https://github.com/Supervisor/supervisor/blob/3.1.4/CHANGES.txt
https://github.com/Supervisor/supervisor/blob/3.0.1/CHANGES.txt