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CVE-2026-54232— vLLM: Dependency Confusion Vulnerability in vLLM Dockerfile

Quick assessment

Affected
vllm-project vllm
Exploitation
Public or AI PoC available; prioritize validation
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 0.22.1之前版本存在权限许可和访问控制问题漏洞，该漏洞源于通过flashinfer-jit-cache包的依赖混淆攻击，可能导致攻击者在Docker构建过程中以root权限执行任意代码并植入后门，从而泄露用户提示、API凭证和模型数据。

CVSS 8.8 · High EPSS 0.56% · P45

Affected Version Matrix 1

VendorProduct Version RangeStatus
vllm-project vllm < 0.22.1 affected
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I. Basic Information for CVE-2026-54232

Vulnerability Information
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Vulnerability Title
vLLM: Dependency Confusion Vulnerability in vLLM Dockerfile
Source: CVE Program / CVE List V5
Vulnerability Description
vLLM is an inference and serving engine for large language models (LLMs). Prior to 0.22.1, the vLLM Dockerfile is vulnerable to a dependency confusion attack through the flashinfer-jit-cache package. The package is installed from a custom index (flashinfer.ai/whl/) using --extra-index-url, but the package name was not registered on PyPI, and UV_INDEX_STRATEGY="unsafe-best-match" is set globally. An attacker who registers flashinfer-jit-cache on PyPI with version 0.6.11.post2 can execute arbitrary code as root during the Docker build and backdoor every resulting container image, enabling exfiltration of all user prompts, API credentials, and model data from production vLLM deployments This vulnerability is fixed in 0.22.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对搜索路径元素未加控制
Source: CVE Program / CVE List V5
Vulnerability Title
vLLM 权限许可和访问控制问题漏洞
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 0.22.1之前版本存在权限许可和访问控制问题漏洞，该漏洞源于通过flashinfer-jit-cache包的依赖混淆攻击，可能导致攻击者在Docker构建过程中以root权限执行任意代码并植入后门，从而泄露用户提示、API凭证和模型数据。
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 < 0.22.1 -

II. Public POCs for CVE-2026-54232

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7977 chars
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III. Intelligence Information for CVE-2026-54232

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Vendor Advisories for CVE-2026-54232 (1)

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

CVE-2026-48746 9.1 CRITICAL vLLM: OpenAI auth bypass
CVE-2026-41523 7.5 HIGH vLLM: Security Check Bypass via assert Statement in Activation Function Loading Allows Arb
CVE-2026-47155 6.5 MEDIUM vLLM: Artifact Pin Decay in vLLM allows pinned deployments to load unpinned code, weights,
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-427

V. Comments for CVE-2026-54232

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