CVE-2026-5535
FedML-AI FedML MQTT Message FileUtils.java path traversal
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.
INFO
Published Date :
April 5, 2026, 3:16 a.m.
Last Modified :
April 30, 2026, 7:29 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update FedML-AI to a version that addresses the path traversal.
- Review and sanitize all input to FileUtils.java.
- Implement strict input validation for file paths.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-5535.
| URL | Resource |
|---|---|
| https://github.com/AnalogyC0de/public_exp/issues/25 | Exploit Mitigation Third Party Advisory |
| https://vuldb.com/submit/782200 | Third Party Advisory VDB Entry |
| https://vuldb.com/vuln/355288 | Third Party Advisory VDB Entry |
| https://vuldb.com/vuln/355288/cti | Permissions Required |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-5535 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-5535
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-5535 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-5535 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 30, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L Added CPE Configuration OR *cpe:2.3:a:tensoropera:fedml:*:*:*:*:*:*:*:* versions up to (excluding) 0.8.9 Added Reference Type VulDB: https://github.com/AnalogyC0de/public_exp/issues/25 Types: Exploit, Mitigation, Third Party Advisory Added Reference Type VulDB: https://vuldb.com/submit/782200 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/vuln/355288 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/vuln/355288/cti Types: Permissions Required -
Data Remediation by [email protected]
Apr. 29, 2026
Action Type Old Value New Value Changed CVSS V4.0 Score 5.3 2.1 -
New CVE Received by [email protected]
Apr. 05, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Added CVSS V2 (AV:N/AC:L/Au:S/C:P/I:N/A:N) Added CWE CWE-22 Added Reference https://github.com/AnalogyC0de/public_exp/issues/25 Added Reference https://vuldb.com/submit/782200 Added Reference https://vuldb.com/vuln/355288 Added Reference https://vuldb.com/vuln/355288/cti