Covert Timing Channel Affecting vllm package, versions [,0.11.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.06% (20th percentile)

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  • Snyk IDSNYK-PYTHON-VLLM-13449923
  • published8 Oct 2025
  • disclosed7 Oct 2025
  • creditRussell Bryantz

Introduced: 7 Oct 2025

NewCVE-2025-59425  (opens in a new tab)
CWE-385  (opens in a new tab)

How to fix?

Upgrade vllm to version 0.11.0 or higher.

Overview

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

Affected versions of this package are vulnerable to Covert Timing Channel via the api_server component. An attacker can gain unauthorized access by exploiting differences in response times during API key validation.

CVSS Base Scores

version 4.0
version 3.1