---
id: CVE-2024-9053
aliases:
  - GHSA-cj47-qj6g-x7r4
  - PYSEC-2025-222
title: >-
  vLLM allows Remote Code Execution by Pickle Deserialization via
  AsyncEngineRPCServer() RPC server entrypoints
summary: >-
  vLLM allows Remote Code Execution by Pickle Deserialization via
  AsyncEngineRPCServer() RPC server entrypoints
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
vendor: vllm
product: vllm
ecosystem: pip
affected:
  - vllm <= 0.6.0
published: '2025-03-20'
updated: '2026-08-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-cj47-qj6g-x7r4'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2024-9053'
  - url: >-
      https://github.com/pypa/advisory-database/tree/main/vulns/vllm/PYSEC-2025-222.yaml
  - url: 'https://github.com/vllm-project/vllm'
  - url: 'https://huntr.com/bounties/75a544f3-34a3-4da0-b5a3-1495cb031e09'
tags:
  - osv
  - pip
epss: 0.0138
epssPercentile: 0.7093
ingestedAt: '2026-08-07T19:14:14.271Z'
---

## Overview

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.

## Affected packages

- `vllm <= 0.6.0`

## Remediation

Refer to the advisory for the patched release.