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CVE-2026-47155— vLLM: Artifact Pin Decay in vLLM allows pinned deployments to load unpinned code, weights, and processors

Quick assessment

Affected
vllm-project vllm
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

vLLM是vLLM团队开源的一个适用于 LLM 的高吞吐量和内存高效推理和服务引擎。 vLLM 0.22.0之前版本存在输入验证错误漏洞，该漏洞源于修订版固定控制未能一致应用于模型加载的所有工件，导致供应链完整性受到影响，可能使部署者加载未经审查的嵌套或同级工件。

CVSS 6.5 · Medium EPSS 0.25% · P15

Affected Version Matrix 1

VendorProduct Version RangeStatus
vllm-project vllm < 0.22.0 affected
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I. Basic Information for CVE-2026-47155

Vulnerability Information
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Vulnerability Title
vLLM: Artifact Pin Decay in vLLM allows pinned deployments to load unpinned code, weights, and processors
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
Source: CVE Program / CVE List V5
Vulnerability Title
vLLM 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
vLLM是vLLM团队开源的一个适用于 LLM 的高吞吐量和内存高效推理和服务引擎。 vLLM 0.22.0之前版本存在输入验证错误漏洞，该漏洞源于修订版固定控制未能一致应用于模型加载的所有工件，导致供应链完整性受到影响，可能使部署者加载未经审查的嵌套或同级工件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
vllm-project vllm < 0.22.0 -

II. Public POCs for CVE-2026-47155

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III. Intelligence Information for CVE-2026-47155

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Patches & Fixes for CVE-2026-47155 (1)

Vendor Advisories for CVE-2026-47155 (2)

Same Patch Batch · vllm-project · 2026-06-22 · 8 CVEs total

CVE-2026-48746 9.1 CRITICAL vLLM: OpenAI auth bypass
CVE-2026-54232 8.8 HIGH vLLM: Dependency Confusion Vulnerability in vLLM Dockerfile
CVE-2026-41523 7.5 HIGH vLLM: Security Check Bypass via assert Statement in Activation Function Loading Allows Arb
CVE-2026-54233 6.5 MEDIUM vLLM: OOM Denial of Service via Audio Decompression Bomb
CVE-2026-54236 5.3 MEDIUM vLLM: incomplete CVE-2026-22778 fix leaks PIL repr addresses via Anthropic router
CVE-2026-53923 vLLM GGUF Kernels: int64_t to int truncation of tensor dimensions causes GPU buffer overfl
CVE-2026-54235 vLLM: temperature=NaN and temperature=Infinity bypass validation and propagate to GPU kern

IV. Related Vulnerabilities

Same product: vllm
Same vendor: vllm-project
Same weakness: CWE-345

V. Comments for CVE-2026-47155

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