CVE-2022-45921: FusionAuth before 1.41.3 allows a file outside of the application root to be viewed or retrieved using an HTTP

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HIGH 7.5REMOTEUPGRADE

CVE-2022-45921 is a high-severity flaw (CVSS 7.5) affecting fusionauth. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FusionAuth before 1.41.3 allows a file outside of the application root to be viewed or retrieved using an HTTP request. To be specific, an attacker may be able to view or retrieve any file readable by the user running the FusionAuth process.

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	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-22
Published	2022-11-28
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fusionauth

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

Am I affected?

Timeline

2022-11-28 21:15 UTCPublished CVE record published
2026-06-17 05:11 UTCUpdated Record last modified

fusionauth fusionauth UPGRADE

Affected: >= 1.37.0 and < 1.41.3

Fixed in: 1.41.3

Safe to downgrade to: a release before 1.37.0

1. Check installed version

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

2. UPGRADE to 1.41.3 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade fusionauth

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 1.37.0 (Debian / Ubuntu)

apt-cache madison fusionauth sudo apt install fusionauth=<VERSION_BEFORE_1.37.0> sudo apt-mark hold fusionauth

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

dnf --showduplicates list fusionauth sudo dnf downgrade fusionauth-<VERSION_BEFORE_1.37.0> sudo dnf versionlock add fusionauth

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-2022-45921?

fusionauth: upgrade to 1.41.3. Exact commands for each OS are on this page.

Is CVE-2022-45921 being exploited?

CVE-2022-45921 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-2022-45921 affect?

CVE-2022-45921 affects fusionauth. Severity is high (CVSS 7.5). FusionAuth before 1.41.3 allows a file outside of the application root to be viewed or retrieved using an HTTP request. To be specific, an attacker may be able to view or retrieve any file readable by the user running the FusionAuth process

How urgent is CVE-2022-45921?

Priority 45/100. High severity; Remotely exploitable, no login, no user action

References

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