CVE-2018-10855: Canonical Ubuntu Linux

Medium severity, CVSS 5.9. EPSS: 3.1% chance of exploitation in the next 30 days.

Ansible 2.5 prior to 2.5.5, and 2.4 prior to 2.4.5, do not honor the no_log task flag for failed tasks. When the no_log flag has been used to protect sensitive data passed to a task from being logged, and that task does not run successfully, Ansible will expose sensitive data in log files and on the terminal of the user running Ansible.

Affected products

• Canonical Ubuntu Linux: version 16.04 only; version 18.04 only; version 19.04 only
• Debian Debian Linux: version 9.0 only
• Red Hat Ansible Engine: from 2.4, before 2.4.5 (fixed in 2.4.5); after 2.5, up to and including 2.5.5; version 2.0 only
• Red Hat Cloudforms: version 4.6 only
• Red Hat Openstack: version 13 only; version 10 only; version 12 only
• Red Hat Virtualization: version 4.0 only

Published 2018-07-03. Last modified 2026-06-17.