CVE-2024-9053: vllm-project vllm Deserialization of Untrusted Data

Vulnerability summary

CVE-2024-9053 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in vllm-project vllm. EPSS estimates a 1.38% chance of exploitation in the next 30 days, higher than 71.7% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 20-03-2025
   PublishedVulnerability first disclosed.
2. 15-10-2025
   Last modifiedVulnerability information updated.

Description

vllm-project vllm version 0.6.0 contains a vulnerability in the AsyncEngineRPCServer() RPC server entrypoints. The core functionality run_server_loop() calls the function _make_handler_coro(), which directly uses cloudpickle.loads() on received messages without any sanitization. This can result in remote code execution by deserializing malicious pickle data.

• CWE-502Deserialization of Untrusted DataThe product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.