FedML Path Traversal in MQTT Message Handler 0.8.0-0.8.9
CVE-2026-5535 Published on April 5, 2026
FedML-AI FedML MQTT Message FileUtils.java path traversal
A security flaw has been discovered in FedML-AI FedML up to 0.8.9. This impacts an unknown function of the file FileUtils.java of the component MQTT Message Handler. Performing a manipulation of the argument dataSet results in path traversal. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Timeline
Advisory disclosed
VulDB entry created
VulDB entry last update
Weakness Type
What is a Directory traversal Vulnerability?
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CVE-2026-5535 has been classified to as a Directory traversal vulnerability or weakness.
Affected Versions
FedML-AI FedML:- Version 0.8.0 is affected.
- Version 0.8.1 is affected.
- Version 0.8.2 is affected.
- Version 0.8.3 is affected.
- Version 0.8.4 is affected.
- Version 0.8.5 is affected.
- Version 0.8.6 is affected.
- Version 0.8.7 is affected.
- Version 0.8.8 is affected.
- Version 0.8.9 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.