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CVE-2025-48943

vLLM allows clients to crash the openai server with invalid regex PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
vllm-project / vllmaffected >= 0.8.0, < 0.9.0

CWE

CWE-248

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.