Allocation of Resources Without Limits or Throttling Affecting vllm package, versions [0.1.0,0.19.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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 applicationsSnyk Learn
Learn about Allocation of Resources Without Limits or Throttling vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-PYTHON-VLLM-15878001
- published3 Apr 2026
- disclosed3 Apr 2026
- creditez-lbz
Introduced: 3 Apr 2026
CVE-2026-34756 (opens in a new tab)How to fix?
Upgrade vllm to version 0.19.0 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 Allocation of Resources Without Limits or Throttling due to the lack of upper bound validation on the n parameter in the request handling process. An attacker can cause the server to exhaust system memory and become unresponsive by sending a single HTTP request with an extremely large n value, resulting in the allocation of millions of request object copies and monopolizing the event loop.