Netdata is an open source observability tool. In affected versions the "ndsudo" tool shipped with affected versions of the Netdata Agent allows an attacker to run arbitrary programs with root permissions. The "ndsudo" tool is packaged as a "root"-owned executable with the SUID bit set. It only runs a restricted set of external commands, but its search paths are supplied by the "PATH" environment variable. This allows an attacker to control where "ndsudo" looks for these commands, which may be a path the attacker has write access to. This may lead to local privilege escalation. This vulnerability has been addressed in versions 1.45.3 and 1.45.2-169. Users are advised to upgrade. There are no known workarounds for this vulnerability.