CVE-2026-35043— BentoML: command injection in cloud deployment setup script (deployment.py)
Quick assessment
Affected
bentoml BentoML
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.
BentoML是BentoML开源的一个开源模型服务库。用于使用 Python 构建高性能和可扩展的人工智能应用程序。 BentoML 1.4.38之前版本存在操作系统命令注入漏洞，该漏洞源于cloud部署路径中系统包变量未加引号直接插入shell命令，可能导致远程代码执行。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-35043
Vulnerability Information
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Vulnerability Title
BentoML: command injection in cloud deployment setup script (deployment.py)
Source: CVE Program / CVE List V5
Vulnerability Description
BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.38, the cloud deployment path in src/bentoml/_internal/cloud/deployment.py was not included in the fix for CVE-2026-33744. Line 1648 interpolates system_packages directly into a shell command using an f-string without any quoting. The generated script is uploaded to BentoCloud as setup.sh and executed on the cloud build infrastructure during deployment, making this a remote code execution on the CI/CD tier. This vulnerability is fixed in 1.4.38.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
BentoML 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BentoML是BentoML开源的一个开源模型服务库。用于使用 Python 构建高性能和可扩展的人工智能应用程序。 BentoML 1.4.38之前版本存在操作系统命令注入漏洞，该漏洞源于cloud部署路径中系统包变量未加引号直接插入shell命令，可能导致远程代码执行。
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
II. Public POCs for CVE-2026-35043
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Vendor Advisories for CVE-2026-35043 (1)
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V. Comments for CVE-2026-35043
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