CVE-2025-59953: LMdeploy has Remote Code Execution by Pickle Deserialization via zmq_rpc.call_and_response() in InterLM/lmdeploy

September 16, 2026 (updated September 24, 2026)

The LMdeploy implements an rpc server (AsyncRPCServer in zmq_rpc.py) for supporting the RPC communications. In its core functionality call_and_response(), I found it will directly use the pickles.loads() to deserialize the received messages without any sanitization, hence resulting in a remote code execution vulnerability by this RPC server.

References

github.com/InternLM/lmdeploy/commit/d86046a0e6b02ecaaf7cdb74346d0477130221c2
github.com/InternLM/lmdeploy/releases/tag/v0.10.2
github.com/InternLM/lmdeploy/security/advisories/GHSA-5h8j-6crg-7rmw
github.com/advisories/GHSA-5h8j-6crg-7rmw
nvd.nist.gov/vuln/detail/CVE-2025-59953

Code Behaviors & Features

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