CVE-2024-8939

A vulnerability was found in the ilab model serve component, where improper handling of the best_of parameter in the vllm JSON web API can lead to a Denial of Service (DoS). The API used for LLM-based sentence or chat completion accepts a best_of parameter to return the best completion from several options. When this parameter is set to a large value, the API does not handle timeouts or resource exhaustion properly, allowing an attacker to cause a DoS by consuming excessive system resources. This leads to the API becoming unresponsive, preventing legitimate users from accessing the service.

Score
CVSS 3.1 6.2 Medium
Status
Deferred - secalert@redhat.com
Published
2024-09-17
Last modified
2025-11-20
Weaknesses
CWE-400

Affected products

References