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Security Advisories

CVE-2025-48943

Published

Last updated

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-48943

Severity

6.5

Medium

CVSS V3

Summary

vLLM allows clients to crash the openai server with invalid regex

Description

vLLM is an inference and serving engine for large language models (LLMs). Version 0.8.0 up to but excluding 0.9.0 have a Denial of Service (ReDoS) that causes the vLLM server to crash if an invalid regex was provided while using structured output. This vulnerability is similar to GHSA-6qc9-v4r8-22xg/CVE-2025-48942, but for regex instead of a JSON schema. Version 0.9.0 fixes the issue.

References

Affected packages


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