Ansible, versions 2.9.x before 2.9.1, 2.8.x before 2.8.7 and Ansible versions 2.7.x before 2.7.15, is not respecting the flag no_log set it to True when Sumologic and Splunk callback plugins are used send tasks results events to collectors. This would discloses and collects any sensitive data.
https://www.debian.org/security/2021/dsa-4950
https://github.com/ansible/ansible/pull/63527
https://github.com/ansible/ansible/issues/63522
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14864
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00021.html