CVE-2026-103395 Details
Description
LightLLM through 1.2.0 visual_only deployments expose an unauthenticated RPyC service with allow_pickle enabled that deserializes attacker-supplied arguments in the remote_infer_images method. Attackers can reach the visual RPyC port and pass objects with __reduce__ methods to execute arbitrary code with service account privileges.
A remote code execution vulnerability has been identified in LightLLM versions through 1.2.0, specifically within the visual-only deployment mode. This vulnerability arises from an unauthenticated RPyC service that allows pickle serialization, enabling the deserialization of attacker-controlled objects in the 'remote_infer_images' method. Exploitation of this issue allows for arbitrary code execution on the server with the privileges of the LightLLM service account.
Users can disable the vulnerable RPyC service or remove the 'allow_pickle' option in the RPyC configuration. Additionally, binding the service to localhost and implementing argument validation could mitigate the issue.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 30, 2026CISA-ADP
Assessed Sep 30, 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/ModelTC/LightLLM/issues/1610 | CISA-ADP | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/ModelTC/LightLLM | [email protected] | Vendor |
| https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/visualserver/objs.py#L6-L11 | [email protected] | Source CodeVendor |
| https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/visualserver/visual_only_manager.py#L138-L140 | [email protected] | Source CodeVendor |
| https://github.com/ModelTC/LightLLM/issues/1610 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remote-code-execution-via-visual-only-rpyc-service | [email protected] | AdvisoryBundle |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-502 | Deserialization of Untrusted Data | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ModelTC LightLLM | <= 1.2.0 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 30, 2026 | CVE Modified | CISA-ADP |
| Sep 30, 2026 | New CVE Received | [email protected] |