Server-side Request Forgery (SSRF) Affecting vllm package, versions [0.16.0,]


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Server-side Request Forgery (SSRF) vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-PYTHON-VLLM-15907607
  • published5 Apr 2026
  • disclosed3 Apr 2026
  • creditFushuling, Xinhao Yuan, l2yyd5, arthur-stat, Boyi Zhao, Victor-code-Y

Introduced: 3 Apr 2026

NewCVE-2026-34753  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

vllm is an A high-throughput and memory-efficient inference and serving engine for LLMs

Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the download_bytes_from_url function. An attacker can cause the server to make arbitrary HTTP or HTTPS requests to internal or external resources by supplying a crafted file_url value in batch input JSON, potentially accessing sensitive internal services or causing denial of service.

CVSS Base Scores

version 4.0
version 3.1