CVE-2022-31261: An XXE issue was discovered in Morpheus through 5.2.16 and 5.4.x through 5.4.4

This month

HIGH 7.5REMOTEUPGRADE

CVE-2022-31261 is a high-severity flaw (CVSS 7.5) affecting morpheus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An XXE issue was discovered in Morpheus through 5.2.16 and 5.4.x through 5.4.4. A successful attack requires a SAML identity provider to be configured. In order to exploit the vulnerability, the attacker must know the unique SAML callback ID of the configured identity source. A remote attacker can send a request crafted with an XXE payload to invoke a malicious DTD hosted on a system that they control. This results in reading local files that the

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-611
Published	2022-05-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: morpheusdata

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

Am I affected?

Timeline

2022-05-24 15:15 UTCPublished CVE record published
2026-06-17 04:45 UTCUpdated Record last modified

morpheusdata morpheus UPGRADE

Affected: <= 5.2.16 · >= 5.4.0 and <= 5.4.4

Fixed in: newer than 5.4.4

Safe to downgrade to: a release before 5.4.0

1. Check installed version

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

2. UPGRADE to newer than 5.4.4 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade morpheus

Note

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

3. If no update is available yet, DOWNGRADE to a release before 5.4.0 (Debian / Ubuntu)

apt-cache madison morpheus sudo apt install morpheus=<VERSION_BEFORE_5.4.0> sudo apt-mark hold morpheus

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list morpheus sudo dnf downgrade morpheus-<VERSION_BEFORE_5.4.0> sudo dnf versionlock add morpheus

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-2022-31261?

morpheus: upgrade to newer than 5.4.4. Exact commands for each OS are on this page.

Is CVE-2022-31261 being exploited?

CVE-2022-31261 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-2022-31261 affect?

CVE-2022-31261 affects morpheus. Severity is high (CVSS 7.5). An XXE issue was discovered in Morpheus through 5.2.16 and 5.4.x through 5.4.4. A successful attack requires a SAML identity provider to be configured. In order to exploit the vulnerability, the attacker must know the unique SAML callback I

How urgent is CVE-2022-31261?

Priority 48/100. High severity; Remotely exploitable, no login, no user action

References

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