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CVE-2021-20191· NVD / CVE Program· CNA redhat

A flaw was found in ansible.

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.34% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: ansible (Alpine:v3.10) 2.8.19-r0; ansible (Alpine:v3.11) 2.9.18-r0; ansible (Alpine:v3.13) 2.10.7-r0.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to ansible (Alpine:v3.10) 2.8.19-r0; ansible (Alpine:v3.11) 2.9.18-r0; ansible (Alpine:v3.13) 2.10.7-r0 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 26, 2021
Updated
Jun 16, 2026
EPSS
0.3% · 26th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2021-20191

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
oraclevirtualization
redhatansible
redhatansible tower
redhatcisco nx-os collection
redhatcommunity general collection
redhatcommunity network collection
redhatdocker community collection
redhatgoogle cloud platform ansible collection

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • oracle virtualization4.0
  • redhat ansiblebefore 2.8.19
  • redhat ansible2.9.0 and later · before 2.9.18
  • redhat ansible2.10.0 and later · before 2.10.7
  • redhat ansible tower3.0
  • redhat cisco nx-os collectionbefore 1.4.0
  • redhat community general collectionbefore 1.3.6
  • redhat community general collection2.0.0 and later · before 2.0.1
  • redhat community network collectionbefore 1.3.2
  • redhat community network collection2.0.0 and later · before 2.0.1
  • redhat docker community collectionbefore 1.2.2
  • redhat google cloud platform ansible collection1.0.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a ansible

    • ansible 2.9.18affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.10ansiblefrom 2.9.0 · before 2.8.19-r02.8.19-r0
Alpine:v3.11ansiblefrom 2.9.0 · before 2.9.18-r02.9.18-r0
Alpine:v3.13ansiblefrom 2.9.0 · before 2.10.7-r02.10.7-r0
Debian:10ansiblebefore 2.7.7+dfsg-1+deb10u22.7.7+dfsg-1+deb10u2
Debian:12ansiblebefore 2.10.7-12.10.7-1
openSUSE:Leap 15.4wirebefore 0.5.0-150000.1.6.10.5.0-150000.1.6.1
PyPIansiblefrom 2.10.0 · before 2.10.72.10.7
PyPIansiblefrom 2.10.0a1 · before 2.10.72.10.7
PyPIansiblefrom 2.9.0 · before 2.9.182.9.18
PyPIansiblefrom 2.9.0a1 · before 2.9.18rc12.9.18rc1
PyPIansiblebefore 2.8.19rc12.8.19rc1
PyPIansiblebefore 2.8.192.8.19
Red Hat:ansible_engine:2::el7ansiblebefore 0:2.9.18-1.el7ae0:2.9.18-1.el7ae
Red Hat:ansible_engine:2::el7ansible-testbefore 0:2.9.18-1.el7ae0:2.9.18-1.el7ae
Red Hat:ansible_engine:2::el8ansiblebefore 0:2.9.18-1.el8ae0:2.9.18-1.el8ae
Red Hat:ansible_engine:2::el8ansible-testbefore 0:2.9.18-1.el8ae0:2.9.18-1.el8ae
SUSE:HPE Helion OpenStack 8ansiblebefore 2.9.22-3.18.12.9.22-3.18.1
SUSE:Linux Enterprise High Performance Computing 15-ESPOSgolang-github-prometheus-node_exporterbefore 1.3.0-150000.3.15.11.3.0-150000.3.15.1
SUSE:Linux Enterprise High Performance Computing 15-ESPOSgolang-github-prometheus-node_exporterbefore 1.3.0-150000.3.15.11.3.0-150000.3.15.1
SUSE:Manager Client Tools 15ansiblebefore 2.9.27-150000.1.14.12.9.27-150000.1.14.1
SUSE:Manager Client Tools 15ansiblebefore 2.9.27-150000.1.14.12.9.27-150000.1.14.1
SUSE:Manager Client Tools 15dracut-saltbootbefore 0.1.1657643023.0d694ce-150000.1.35.10.1.1657643023.0d694ce-150000.1.35.1
SUSE:Manager Client Tools 15dracut-saltbootbefore 0.1.1657643023.0d694ce-150000.1.35.10.1.1657643023.0d694ce-150000.1.35.1
SUSE:Manager Client Tools 15golang-github-QubitProducts-exporter_exporterbefore 0.4.0-150000.1.15.10.4.0-150000.1.15.1

+38

Same product

oracle: all records

Other highest-scoring records for the same primary product.

  • CVE-2013-3779Unspecified vulnerability in the Secure Global Desktop component in Oracle Virtualization All 4.6 releases including 4.63 and 4.7 prior to 4
    30Monitor
  • CVE-2011-3538Unspecified vulnerability in the Sun Ray component in Oracle Virtualization 4.0 allows remote attackers to affect integrity, related to Auth
    28Monitor
  • CVE-2015-2581Unspecified vulnerability in the Oracle Secure Global Desktop component in Oracle Virtualization 5.1 and 5.2 allows remote attackers to affe
    26Monitor
  • CVE-2014-2439Unspecified vulnerability in the Oracle Secure Global Desktop (SGD) component in Oracle Virtualization 5.0 and 5.1 allows remote attackers t
    26Monitor
  • CVE-2020-10775An Open redirect vulnerability was found in ovirt-engine versions 4.4 and earlier, where it allows remote attackers to redirect users to arb
    22Monitor
  • CVE-2014-2475Unspecified vulnerability in the Oracle Secure Global Desktop component in Oracle Virtualization 4.63, 4.71, 5.0, and 5.1 allows remote atta
    21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:ansible2.8.19-r0 · Alpine:v3.10Package registry (OSV)
debian:ansible2.10.7-1 · Debian:12Package registry (OSV)
PyPI:ansible2.10.7Package registry (OSV)
PyPI:ansible2.8.19Package registry (OSV)
PyPI:ansible2.8.19rc1Package registry (OSV)
PyPI:ansible2.9.18Package registry (OSV)
PyPI:ansible2.9.18rc1Package registry (OSV)
red hat:ansible0:2.9.18-1.el7ae · Red Hat:ansible_engine:2::el7Package registry (OSV)
red hat:ansible-test0:2.9.18-1.el7ae · Red Hat:ansible_engine:2::el7Package registry (OSV)
suse:ansible2.9.22-3.18.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ansible2.9.27-150000.1.14.1 · SUSE:Manager Client Tools 15Package registry (OSV)
suse:dracut-saltboot0.1.1657643023.0d694ce-150000.1.35.1 · SUSE:Manager Client Tools 15Package registry (OSV)
suse:golang-github-QubitProducts-exporter_exporter0.4.0-150000.1.15.1 · SUSE:Manager Client Tools 15Package registry (OSV)
suse:mgr-daemon4.3.5-150000.1.35.1 · SUSE:Manager Client Tools 15Package registry (OSV)
suse:mgr-virtualization4.3.6-150000.1.32.1 · SUSE:Manager Client Tools 15Package registry (OSV)
suse:prometheus-blackbox_exporter0.19.0-150000.1.11.1 · SUSE:Manager Client Tools 15Package registry (OSV)
suse:python-hwdata2.3.5-150000.3.9.1 · SUSE:Manager Client Tools 15Package registry (OSV)
suse:spacecmd4.3.14-150000.3.83.1 · SUSE:Manager Client Tools 15Package registry (OSV)
suse:spacewalk-client-tools4.3.11-150000.3.65.1 · SUSE:Manager Client Tools 15Package registry (OSV)
suse:uyuni-common-libs4.3.5-150000.1.24.1 · SUSE:Manager Client Tools 15Package registry (OSV)
suse:uyuni-proxy-systemd-services4.3.6-150000.1.6.1 · SUSE:Manager Client Tools 15Package registry (OSV)
suse:zypp-plugin-spacewalk1.0.13-150000.3.32.1 · SUSE:Manager Client Tools 15Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-532 · Insertion of Sensitive Information into Log File

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records