FedML-AI FedML up to 0.8.9 MQTT Message FileUtils.java dataSet path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.9$0-$5k1.39

Summaryinfo

A vulnerability labeled as critical has been found in FedML-AI FedML up to 0.8.9. Affected is an unknown function of the file FileUtils.java of the component MQTT Message Handler. Executing a manipulation of the argument dataSet can lead to path traversal. This vulnerability appears as CVE-2026-5535. The attack may be performed from remote. In addition, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability has been found in FedML-AI FedML up to 0.8.9 and classified as problematic. This vulnerability affects an unknown part of the file FileUtils.java of the component MQTT Message Handler. The manipulation of the argument dataSet with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product 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 product 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. As an impact it is known to affect confidentiality.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-5535. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1006.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/04/2026 Advisory disclosed
04/04/2026 +0 days VulDB entry created
04/04/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-5535 (🔒)
GCVE (CVE): GCVE-0-2026-5535
GCVE (VulDB): GCVE-100-355288
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/04/2026 08:45
Changes: 04/04/2026 08:45 (58)
Complete: 🔍
Submitter: Ana10gy
Cache ID: 216:E3F:103

Submitinfo

Accepted

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