CVE-2020-10729

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-05-27 · updated 2026-06-17
Weakness: CWE-330

Description

A flaw was found in the use of insufficiently random values in Ansible. Two random password lookups of the same length generate the equal value as the template caching action for the same file since no re-evaluation happens. The highest threat from this vulnerability would be that all passwords are exposed at once for the file. This flaw affects Ansible Engine versions before 2.9.6.

Affected products

Debian Linux: 10.0
RedHat Ansible Engine: before 2.9.6 — fixed in 2.9.6

How to fix

Upgrade to a fixed version: RedHat Ansible Engine 2.9.6. Check the vendor advisory for mitigations.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1831089
https://github.com/ansible/ansible/issues/34144
https://www.debian.org/security/2021/dsa-4950
https://bugzilla.redhat.com/show_bug.cgi?id=1831089
https://github.com/ansible/ansible/issues/34144
https://www.debian.org/security/2021/dsa-4950

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