VYPR
← All advisories
High severity7.5GHSA Advisory· Published Jun 22, 2026· Updated Sep 4, 2026

CVE-2026-41523

CVE-2026-41523

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

5

Patches

Vulnerability mechanics

References

23

News mentions

1