Versions of MCollective prior to 2.10.4 deserialized YAML from agents without calling safe_load, allowing the potential for arbitrary code execution on the server. The fix for this is to call YAML.safe_load on input. This has been tested in all Puppet-supplied MCollective plugins, but there is a chance that third-party plugins could rely on this insecure behavior.
{
"cpe": "cpe:2.3:a:puppet:mcollective:*:*:*:*:*:puppet:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "2.10.3"
}
],
"source": "CPE_FIELD"
}