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CVE-2021-20191

19
FAUCET Score

CVE-2021-20191 describes a flaw in Ansible versions prior to 2.9.18, affecting products like Oracle and Red Hat, where sensitive credentials are inadvertently exposed in console logs. This vulnerability, categorized as a medium severity issue with a CVSS score of 5.5, allows an attacker with local access to compromise data confidentiality by stealing these disclosed credentials. There is currently no evidence of active exploitation, nor is public exploit code available, and the vulnerability has garnered minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:a:oracle:virtualization:4.0:*:*:*:*:*:*:*
< 2.8.19CPE matchmatch criteria
cpe:2.3:a:redhat:ansible:*:*:*:*:*:*:*:*
>= 2.9.0, < 2.9.18CPE matchmatch criteria
cpe:2.3:a:redhat:ansible:*:*:*:*:*:*:*:*
>= 2.10.0, < 2.10.7CPE matchmatch criteria
cpe:2.3:a:redhat:ansible:*:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:a:redhat:ansible_tower:3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 84th percentile among its peer group of 15,938 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (16)

microsoftpatch availablevia msrc
Product: 19052-16820Fixed in: 2.9.18-1
microsoftpatch availablevia msrc
Product: cm1 ansible 2.9.18-1 on CBL Mariner 1.0Fixed in: 2.9.18-1
pippatch availablevia ghsa
Product: ansibleFixed in: 2.9.18rc1
pippatch availablevia ghsa
Product: ansibleFixed in: 2.8.19rc1
pippatch availablevia ghsa
Product: ansibleFixed in: 2.10.7
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Engine 2 for RHEL 7Fixed in: ansible-0:2.9.18-1.el7ae
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Engine 2 for RHEL 8Fixed in: ansible-0:2.9.18-1.el8ae
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Fixed in: ansible-0:2.9.18-1.el8ae
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization Engine 4.4Fixed in: ansible-0:2.9.18-1.el8ae
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Engine 2.9 for RHEL 7Fixed in: ansible-0:2.9.18-1.el7ae
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Automation Platform 1.2 for RHEL 7Fixed in: ansible-automation-platform/platform-resource-operator-bundle:v0.1.1-1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Automation Platform 1.2 for RHEL 7Fixed in: ansible-automation-platform/platform-resource-rhel7-operator:v0.1.0-12
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Automation Platform 1.2 for RHEL 7Fixed in: ansible-automation-platform/platform-resource-runner-rhel7:v0.1.0-15
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Engine 2.9 for RHEL 8Fixed in: ansible-0:2.9.18-1.el8ae
View patch
redhatvendor investigatingvia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Storage 3Fixed in: ansible

Vendor Advisories (3)

pipGHSA-8f4m-hccc-8qphmedium

Insertion of Sensitive Information into Log File in ansible

Jun 1, 2021
microsoft2021-May/CVE-2021-20191Moderate

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.

May 11, 2021
redhatCVE-2021-20191Moderate

ansible: multiple modules expose secured values

Jan 15, 2021

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingVendor Advisory
lists.debian.org / debian-lts-announce/2023/12/msg00018.html