Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vllm | Vllm | < 0.22.0 |
Related Weaknesses (CWE)
References
- https://github.com/vllm-project/vllm/commit/d26a28ab033697f55a1414b5b0435de7cd60Patch
- https://github.com/vllm-project/vllm/pull/42616Issue Tracking
- https://github.com/vllm-project/vllm/security/advisories/GHSA-3ww4-5jv9-j5gmThird Party Advisory
- https://huntr.com/bounties/3f1e24c0-87d2-4f6c-a705-820f380879acThird Party Advisory
FAQ
What is CVE-2026-47155?
CVE-2026-47155 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...
How severe is CVE-2026-47155?
CVE-2026-47155 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-47155?
Check the references section above for vendor advisories and patch information. Affected products include: Vllm Vllm.