CVE-2026-5535 FedML-AI FedML MQTT Message FileUtils.java path traversal
Remote attackers can exploit a path traversal flaw in the MQTT message handler to read or modify arbitrary files on the system.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5535?
CVE-2026-5535 is a medium-severity path traversal vulnerability in FedML-AI FedML, published on 5 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-22
Which versions are affected by CVE-2026-5535?
It affects 1 product.
Products include Tensoropera Fedml.
How do I fix CVE-2026-5535?
No fix has been published for CVE-2026-5535 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-5535 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5535 exists.
Other vulnerabilities in FedML-AI FedML
Sources
Also known as GHSA-x5gq-6962-7gv9.