CVE-2026-5536 Details
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.
A remote code execution vulnerability exists in FedML-AI FedML versions through 0.8.9. The issue arises in the gRPC server component, specifically within the sendMessage function of grpc_server.py. The vulnerability is due to unsafe deserialization of data received through gRPC messages, which are processed without proper validation. This flaw allows an unauthenticated remote attacker to send maliciously crafted Python pickle payloads that, when deserialized, execute arbitrary code on the affected federated learning node.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 6, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/AnalogyC0de/public_exp/issues/26 | [email protected] | Third Party Advisory |
| https://vuldb.com/submit/782201 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/355289 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/355289/cti | [email protected] | Permissions Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-20 | Improper Input Validation | [email protected] |
| CWE-502 | Deserialization of Untrusted Data | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| tensoropera fedml | <= 0.8.9 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 30, 2026 | Initial Analysis | [email protected] |
| Apr 5, 2026 | New CVE Received | [email protected] |