CVE-2026-90919
Critical · CVSS 9.8- CVSS
- 9.8
- nvd
- EPSS
- 1.01%
- 62th pct
- KEV
- No
- Class
- oss containerizable
- CWE-502
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.
References
- https://github.com/ModelTC/LightLLM/blob/v1.2.0/lightllm/server/config_server/api_http.py#L79-L86
- https://github.com/ModelTC/LightLLM/issues/1563
- https://github.com/ModelTC/lightllm
- https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remote-code-execution-via-config-server-pickle-deserialization
- https://github.com/ModelTC/LightLLM/issues/1563
Status: profiled · ingested 2026-09-23T18:00:19.000Z