CVE-2026-47155

Medium

Description

vLLM is an inference and serving engine for large language models (LLMs). Prior to 0.22.0, vLLM's revision pinning controls do not consistently apply to all artifacts loaded for a model. A deployment that supplies --revision or --code-revision can still load dynamic code, GGUF files, image processors, retrieval side weights, or same-repository subfolder weights/config from an unpinned/default revision. This is a supply-chain integrity issue for pinned vLLM deployments. Operators can believe they are serving a reviewed model revision while vLLM resolves behavior-affecting nested or sibling artifacts outside that reviewed revision. This vulnerability is fixed in 0.22.0.

SeverityMedium
CVSS6.5
Exploit probability—
ProductVllm
PublishedJun 22, 2026
First seenJun 22, 2026
Weakness typeCWE-345CWE-345

How to fix

Update
  • vllm vllm0.22.0 or later
  • vllm0.22.0 or later

Affected products

ProductAffected versionsFixed in
vllm vllmv < 0.22.00.22.0
vllmPyPIv < 0.22.00.22.0

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