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PYSEC-2025-54

Quick fix

PYSEC-2025-54 — vllm: upgrade to the fixed version with the command below.

pip install --upgrade 'vllm>=08bf7840780980c7568c573c70a6a8db94fd45ff'

Details

vLLM is an inference and serving engine for large language models (LLMs). In versions 0.8.0 up to but excluding 0.9.0, hitting the /v1/completions API with a invalid json_schema as a Guided Param kills the vllm server. This vulnerability is similar GHSA-9hcf-v7m4-6m2j/CVE-2025-48943, but for regex instead of a JSON schema. Version 0.9.0 fixes the issue.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/vllm

Introduced in: 0Fixed in: 08bf7840780980c7568c573c70a6a8db94fd45ff

Fixpip install --upgrade 'vllm>=08bf7840780980c7568c573c70a6a8db94fd45ff'

References

https://github.com/vllm-project/vllm/security/advisories/GHSA-6qc9-v4r8-22xg[EVIDENCE]
https://github.com/vllm-project/vllm/commit/08bf7840780980c7568c573c70a6a8db94fd45ff[FIX]
https://github.com/vllm-project/vllm/pull/17623[REPORT]
https://github.com/vllm-project/vllm/issues/17248[REPORT]