CVE-2025-30165 Remote Code Execution Vulnerability in vLLM Multi-Node Cluster Configuration

vLLM is an inference and serving engine for large language models. In a multi-node vLLM deployment using the V0 engine, vLLM uses ZeroMQ for some multi-node communication purposes. The secondary vLLM hosts open a SUB ZeroMQ socket and connect to an XPUB socket on the primary vLLM host. When data ...

PT-2025-19899

Name of the Vulnerable Software and Affected Versions vllm versions 0.5.2 through 0.8.5.post1 Description The issue exists in the V0 engine of vLLM, which uses ZeroMQ for multi-node communication. When data is received on the SUB ZeroMQ socket, it is deserialized with pickle, allowing for potenti...