CVE-2024-8939: Red Hat Enterprise Linux Ai Rhel Ai

Medium severity, CVSS 6.2. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Red Hat Red Hat Enterprise Linux Ai Rhel Ai

Published 2024-09-17. Last modified 2026-06-17.