CVE-2021-3447: A flaw was found in several ansible modules, where parameters containing credentials, such as secrets, were be

Q: How do I fix CVE-2021-3447?

ansible: upgrade to 1.2.2; ansible tower: upgrade to 3.8.2; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2021-3447 being exploited?

CVE-2021-3447 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-3447 affect?

CVE-2021-3447 affects ansible, ansible tower, fedora. Severity is medium (CVSS 5.5). A flaw was found in several ansible modules, where parameters containing credentials, such as secrets, were being logged in plain-text on managed nodes, as well as being made visible on the controller node when run in verbose mode. These pa

Q: How urgent is CVE-2021-3447?

Priority 31/100. On your watchlist

Routine

MEDIUM 5.5WATCHLISTUPGRADEUPGRADEMITIGATE

CVE-2021-3447 is a medium-severity flaw (CVSS 5.5) affecting ansible, ansible tower, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw was found in several ansible modules, where parameters containing credentials, such as secrets, were being logged in plain-text on managed nodes, as well as being made visible on the controller node when run in verbose mode. These parameters were not protected by the no_log feature. An attacker can take advantage of this information to steal those credentials, provided when they have access to the log files containing them. The highest thr

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 73%)
CISA exploited list	No
Weakness	CWE-532
Published	2021-04-01
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: fedoraproject · redhat

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-04-01 18:15 UTCPublished CVE record published
2026-06-17 04:05 UTCUpdated Record last modified

redhat ansible UPGRADE

Affected: < 1.2.2

Fixed in: 1.2.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ansible || rpm -q ansible || ansible --version

2. UPGRADE to 1.2.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ansible

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ansible

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

redhat ansible tower UPGRADE

Affected: < 3.8.2

Fixed in: 3.8.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ansible-tower || rpm -q ansible-tower || ansible-tower --version

2. UPGRADE to 3.8.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ansible-tower

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ansible-tower

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

fedoraproject fedora MITIGATE

Affected: 32 · 33 · 34

Fixed in: no fixed release known

Safe to downgrade to: a release before 32

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-3447?

ansible: upgrade to 1.2.2; ansible tower: upgrade to 3.8.2; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-3447 being exploited?

CVE-2021-3447 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-3447 affect?

CVE-2021-3447 affects ansible, ansible tower, fedora. Severity is medium (CVSS 5.5). A flaw was found in several ansible modules, where parameters containing credentials, such as secrets, were being logged in plain-text on managed nodes, as well as being made visible on the controller node when run in verbose mode. These pa

How urgent is CVE-2021-3447?

Priority 31/100. On your watchlist

Software pages

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References

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