CVE-2026-5536

HIGH

FedML-AI FedML gRPC server grpc_server.py sendMessage deserialization

Title source: cna
STIX 2.1

Description

A weakness has been identified in FedML-AI FedML up to 0.8.9. Affected is the function sendMessage of the file grpc_server.py of the component gRPC server. Executing a manipulation can lead to deserialization. The attack may be performed from remote. The vendor was contacted early about this disclosure but did not respond in any way.

References (4)

Core 4
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-355289 | FedML-AI FedML gRPC server grpc_server.py sendMessage deserialization
https://vuldb.com/vuln/355289
Signature, Permissions Required signature permissions-required
VDB-355289 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/355289/cti
Third Party Advisory third-party-advisory
Submit #782201 | FedML-AI FedML <= 0.8.9 Remote Code Execution
https://vuldb.com/submit/782201

Scores

CVSS v3 7.3
EPSS 0.0038
EPSS Percentile 29.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-20 CWE-502
Status published
Products (11)
FedML-AI/FedML 0.8.0
FedML-AI/FedML 0.8.1
FedML-AI/FedML 0.8.2
FedML-AI/FedML 0.8.3
FedML-AI/FedML 0.8.4
FedML-AI/FedML 0.8.5
FedML-AI/FedML 0.8.6
FedML-AI/FedML 0.8.7
FedML-AI/FedML 0.8.8
FedML-AI/FedML 0.8.9
... and 1 more
Published Apr 05, 2026
Tracked Since Apr 05, 2026