CVE-2025-48943 – vllm

Package

Manager: pip
Name: vllm
Vulnerable Version: >=0.8.0 <0.9.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.0006 pctl0.19053

Details

vLLM allows clients to crash the openai server with invalid regex ### Impact A denial of service bug caused the vLLM server to crash if an invalid regex was provided while using structured output. This vulnerability is similar to [GHSA-6qc9-v4r8-22xg](https://github.com/vllm-project/vllm/security/advisories/GHSA-6qc9-v4r8-22xg), but for regex instead of a JSON schema. Issue with more details: https://github.com/vllm-project/vllm/issues/17313 ### Patches * https://github.com/vllm-project/vllm/pull/17623

Metadata

Created: 2025-05-28T19:42:12Z
Modified: 2025-06-27T21:07:04Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/05/GHSA-9hcf-v7m4-6m2j/GHSA-9hcf-v7m4-6m2j.json
CWE IDs: ["CWE-248"]
Alternative ID: GHSA-9hcf-v7m4-6m2j
Finding: F140
Auto approve: 1