CVE-2026-103041

Summary

LightLLM through 1.2.0 multimodal deployments expose an unauthenticated RPyC cache service with pickle deserialization enabled on all interfaces. Attackers can send crafted serialized objects to exposed cache methods to execute arbitrary code with service privileges.

Affected Software

Weaknesses

• CWE-502: Deserialization of Untrusted Data

References

• https://github.com/ModelTC/LightLLM/issues/1596
• https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/embed_cache/manager.py#L29-L31
• https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/embed_cache/manager.py#L66
• https://github.com/ModelTC/LightLLM
• https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remote-code-execution-via-embed-cache-rpyc-service

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