CVE-2021-3644: A flaw was found in wildfly-core in all versions

Routine

LOW 3.3WATCHLISTDOWNGRADEDOWNGRADE

CVE-2021-3644 is a low-severity flaw (CVSS 3.3) affecting descision manager, wildfly. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw was found in wildfly-core in all versions. If a vault expression is in the form of a single attribute that contains multiple expressions, a user who was granted access to the management interface can potentially access a vault expression they should not be able to access and possibly retrieve the item which was stored in the vault. The highest threat from this vulnerability is data confidentiality and integrity.

Why this priority

On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	3.3 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	High
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-200
Published	2022-08-26
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2022-08-26 16:15 UTCPublished CVE record published
2026-06-17 04:05 UTCUpdated Record last modified

redhat descision manager DOWNGRADE

Affected: 7.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0

1. Check installed version

apt-cache policy descision-manager || rpm -q descision-manager || descision-manager --version

2. No fixed release: DOWNGRADE to a release before 7.0 (Debian / Ubuntu)

apt-cache madison descision-manager sudo apt install descision-manager=<VERSION_BEFORE_7.0> sudo apt-mark hold descision-manager

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list descision-manager sudo dnf downgrade descision-manager-<VERSION_BEFORE_7.0> sudo dnf versionlock add descision-manager

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

redhat wildfly DOWNGRADE

Affected: 16.0.0 · 17.0.0 beta2

Fixed in: no fixed release known

Safe to downgrade to: a release before 16.0.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 16.0.0 (Debian / Ubuntu)

apt-cache madison wildfly sudo apt install wildfly=<VERSION_BEFORE_16.0.0> sudo apt-mark hold wildfly

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list wildfly sudo dnf downgrade wildfly-<VERSION_BEFORE_16.0.0> sudo dnf versionlock add wildfly

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2021-3644?

descision manager: downgrade or apply the listed mitigation; wildfly: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-3644 being exploited?

CVE-2021-3644 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-2021-3644 affect?

CVE-2021-3644 affects descision manager, wildfly. Severity is low (CVSS 3.3). A flaw was found in wildfly-core in all versions. If a vault expression is in the form of a single attribute that contains multiple expressions, a user who was granted access to the management interface can potentially access a vault expres

How urgent is CVE-2021-3644?

Priority 32/100. On your watchlist

Software pages

HashiCorp Vault vulnerabilities · JBoss and WildFly vulnerabilities

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References

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