FedML-AI FedML gRPC server grpc_server.py sendMessage deserialization
Priority LOW 37CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-502.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00384 32nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| FedML-AI | FedML | 0.8.0; 0.8.1; 0.8.2; 0.8.3; 0.8.4; 0.8.5; 0.8.6; 0.8.7; 0.8.8; 0.8.9 | — | No fix listed | CNA |
- FedML VendorFedML-AI Affected 0.8.0; 0.8.1; 0.8.2; 0.8.3; 0.8.4; 0.8.5; 0.8.6; 0.8.7; 0.8.8; 0.8.9 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:tensoropera:fedml:*:*:*:*:*:*:*:* | up to 0.8.9 | Vulnerable | Tensoropera |
- cpe:2.3:a:tensoropera:fedml:*:*:*:*:*:*:*:* Versions up to 0.8.9 Vulnerable ·Tensoropera
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-5536
- 2026-10-03 Alias added: GHSA-2fpx-xrc2-7qf3
References
More FedML-AI vulnerabilities
- TI-2026-61620 FedML-AI FedML MQTT+S3 Communication Backend remote_storage.py S3Storage.read_model deserialization CVSS 4.0MEDIUM 5.3
Sources
- CVE-2026-5536 · CVE Program
- CVE-2026-5536 · NVD
- FIRST EPSS
- GHSA-2fpx-xrc2-7qf3 · GitHub Advisory Database · CC BY 4.0
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