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CVE-2026-90614

FedML-AI FedML MQTT+S3 Communication Backend remote_storage.py S3Storage.read_model deserialization

CVSS 4.0 5.3 MEDIUMCVSS 3.1 6.3 MEDIUMCVSS 3.0 6.3 MEDIUMCVSS 2.0 6.5 Check source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-90614

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-90614

Published

FedML

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "FedML-AI",
                    "product": "FedML",
                    "versions": [
                        {
                            "version": "0.9.0",
                            "status": "affected"
                        },
                        {
                            "version": "0.9.1",
                            "status": "affected"
                        },
                        {
                            "version": "0.9.2",
                            "status": "affected"
                        },
                        {
                            "version": "0.9.3",
                            "status": "affected"
                        },
                        {
                            "version": "0.9.4",
                            "status": "affected"
                        },
                        {
                            "version": "0.9.5",
                            "status": "affected"
                        },
                        {
                            "version": "0.9.6",
                            "status": "affected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:fedml-ai:fedml:*:*:*:*:*:*:*:*"
                    ],
                    "modules": [
                        "MQTT+S3 Communication Backend"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON