CVE-2021-20253: Red Hat Ansible Tower

Medium severity, CVSS 6.7. EPSS: 0.4% chance of exploitation in the next 30 days.

A flaw was found in ansible-tower. The default installation is vulnerable to Job Isolation escape allowing an attacker to elevate the privilege from a low privileged user to the awx user from outside the isolated environment. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Affected products

• Red Hat Ansible Tower: before 3.6.7 (fixed in 3.6.7); from 3.7.0, before 3.7.5 (fixed in 3.7.5); from 3.8.0, before 3.8.2 (fixed in 3.8.2)

Published 2021-03-09. Last modified 2026-06-17.