CVE-2026-9540: Vllm-Project Vllm

Medium severity, CVSS 5.3. EPSS: 0.7% chance of exploitation in the next 30 days.

A vulnerability was identified in vllm-project vllm 0.19.0. This issue affects some unknown processing of the component OpenAI-compatible Serving Path. Such manipulation leads to denial of service. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The pull request to fix this issue awaits acceptance.

Affected products

• Vllm-Project Vllm: version 0.19.0 only

Published 2026-05-26. Last modified 2026-07-23.