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Not in CISA KEV
HIGH severity

CVE-2022-45921 — fusionauth-java-client

HIGH

CVE-2022-45921 is a high-severity (CVSS 7.5) Path Traversal vulnerability in io.fusionauth:fusionauth-java-client. A fix is available for io.fusionauth:fusionauth-java-client — see the affected versions and patch details below.

FusionAuth vulnerable to directory traversal attack

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2022-45921.

EPSS Exploitation Probability

via FIRST.org ↗
0.7%probability of exploitation in next 30 days
Lower Risk+0.07%
Lower risk than most CVEs55th percentile — riskier than 55% of all scored CVEsHighest risk
0.08%0.47%0.85%1.24%0.6%0.7%May 26Aug 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
☕io.fusionauth:fusionauth-java-client

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

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.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenio.fusionauth:fusionauth-java-client≥ 1.37.0&&< 1.41.31.41.3io.fusionauth:fusionauth-java-client:1.41.3

Affected Products

1 product · 1 configurations
Application
fusionauthfusionauth
≥ 1.37.0 && < 1.41.3
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for io.fusionauth:fusionauth-java-client, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update io.fusionauth:fusionauth-java-client to 1.41.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-45921 is resolved across your whole dependency graph.

  3. Workarounds

    Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

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.
O3 Security · Impact-Aware SCA

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CVE-2022-45921: fusionauth-java-client — Fixed in 1.41.3