CVE-2021-20191

Name: CVE-2021-20191
Creator: NVD / NIST
Published: 2021-05-26T21:15:08.193+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.35%

Last modified Jun 17, 2026

CVE-2021-20191 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A flaw was found in ansible. Credentials, such as secrets, are being disclosed in console log by default and not protected by no_log feature when using those modules. EPSS estimates a 0.35% chance of exploitation in the next 30 days.

Description

A flaw was found in ansible. Credentials, such as secrets, are being disclosed in console log by default and not protected by no_log feature when using those modules. An attacker can take advantage of this information to steal those credentials. The highest threat from this vulnerability is to data confidentiality. Versions before ansible 2.9.18 are affected.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.35%

26.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-532

Affected Software

Vendor	Product	Versions
Oracle	Virtualization	4.0
Redhat	Ansible	< 2.8.19
Redhat	Ansible	>= 2.9.0, < 2.9.18
Redhat	Ansible	>= 2.10.0, < 2.10.7
Redhat	Ansible Tower	3.0
Redhat	Cisco Nx-Os Collection	< 1.4.0
Redhat	Community General Collection	< 1.3.6
Redhat	Community General Collection	>= 2.0.0, < 2.0.1
Redhat	Community Network Collection	< 1.3.2
Redhat	Community Network Collection	>= 2.0.0, < 2.0.1
Redhat	Docker Community Collection	< 1.2.2
Redhat	Google Cloud Platform Ansible Collection	1.0.2

References

https://bugzilla.redhat.com/show_bug.cgi?id=1916813Issue Tracking, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/12/msg00018.html
https://bugzilla.redhat.com/show_bug.cgi?id=1916813Issue Tracking, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/12/msg00018.html

Timeline

Published: May 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-20191?

How severe is CVE-2021-20191?

CVE-2021-20191 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.

How do I fix CVE-2021-20191?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-20191?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST