FedML-AI FedML MQTT+S3 Communication Backend remote_storage.py S3Storage.read_model deserialization
Published Sep 14, 2026 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
FedML-AI FedML MQTT+S3 Communication Backend remote_storage.py S3Storage.read_model deserialization
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
A weakness has been identified in FedML-AI FedML up to 0.9.6. Affected by this issue is the function S3Storage.read_model of the file fedml/core/distributed/communication/s3/remote_storage.py of the component MQTT+S3 Communication Backend. This manipulation of the argument s3_key_str causes deserialization. Remote exploitation of the attack is possible. The project was informed of the problem early through an issue report but has not responded yet.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- VDB-403196 | FedML-AI FedML MQTT+S3 Communication Backend remote_storage.py S3Storage.read_model deserialization ↗
- VDB-403196 | CTI Indicators (IOB, IOC, IOA) ↗
- CVE-2026-90614 | CVE Analysis and Report ↗
- Submit #914219 | FedML-AI FedML 0.9.6 Deserialization ↗
- Source repository ↗
- Source repository ↗
Record history
Published Sep 14, 2026 · Last refreshed Nov 3, 2026