LightLLM through 1.2.0 contains a remote code execution vulnerability in the Config Server's unauthenticated /visual_register WebSocket endpoint that passes the first client frame directly to pickle.loads(). Attackers can reach the Config Server port and send a malicious serialized payload with a __reduce__ method to execute arbitrary code with Config Server process privileges.
Advisories

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Fixes

Solution

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Workaround

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History

Mon, 14 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
First Time appeared Modeltc
Modeltc lightllm
Vendors & Products Modeltc
Modeltc lightllm

Mon, 14 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
Description LightLLM through 1.2.0 contains a remote code execution vulnerability in the Config Server's unauthenticated /visual_register WebSocket endpoint that passes the first client frame directly to pickle.loads(). Attackers can reach the Config Server port and send a malicious serialized payload with a __reduce__ method to execute arbitrary code with Config Server process privileges.
Title LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Config Server Pickle Deserialization
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-14T14:24:32.920Z

Reserved: 2026-09-14T11:04:23.742Z

Link: CVE-2026-90919

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-14T12:17:51.807

Modified: 2026-09-14T15:17:13.630

Link: CVE-2026-90919

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-14T13:00:10Z

Weaknesses