Medium 6.3Published Sep 14, 2026

CVE-2026-90614FedML-AI FedML MQTT+S3 Communication Backend remote_storage.py S3Storage.read_model deserialization

Updated under an hour ago (2026-10-19 07:00 UTC)

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It affects FedML-AI FedML. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 6.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R
Weakness (CWE): CWE-502, CWE-20
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Sep 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

FedML-AI FedML fedml-ai:fedml	0.9.0; 0.9.1; 0.9.2; 0.9.3; 0.9.4; 0.9.5; 0.9.6	CNA record

References

https://vuldb.com/vuln/403196vdb-entry, technical-description
https://vuldb.com/vuln/403196/ctisignature, permissions-required
https://vuldb.com/cve/CVE-2026-90614third-party-advisory
https://vuldb.com/submit/914219third-party-advisory
https://github.com/FedML-AI/FedML/issues/2267issue-tracking
https://github.com/FedML-AI/FedML/product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.