cvedb.io
CVE-2026-41523
HIGH · CVSS 7.5
EPSS exploitation probability: 31%
Published 2026-06-22T23:16:30.200 · Last modified 2026-06-24T16:48:45.290

Summary

vLLM is an inference and serving engine for large language models (LLMs). Prior to 0.22.0, an assert-based security check in vLLM's activation function loading allows any unauthenticated attacker to achieve arbitrary code execution on the server by publishing a malicious HuggingFace model, when vLLM runs in Python optimized mode (python -O or PYTHONOPTIMIZE=1). This vulnerability is fixed in 0.22.0.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.