Yaml.load() return Python object may be dangerous if you receive a YAML document from an untrusted source such as the Internet. The function yaml.safe_load() limits this ability to simple Python objects like integers or lists. Reference: https://security.openstack.org/guidelines/dg_avoid-dangerous-input-parsing-libraries.html Change-Id: I9f865703630fa5c51943db9d31784f8fe2431806