CVE-2026-40610— BentoML has Information Disclosure in `bentoml build` via symlink traversal in the build context

BentoML has Information Disclosure in `bentoml build` via symlink traversal in the build context

BentoML is a Python library for building online serving systems optimized for AI apps and model inference. In versions 1.4.38 and prior, the build packaging workflow follows attacker-controlled symlinks inside the build context and copies the referenced file contents into the generated Bento artifact. If a victim builds an untrusted repository or other attacker-supplied build context, the attacker can place a symlink such as loot.txt -> /tmp/outside-marker.txt or a link to a more sensitive local file. When bentoml build runs, BentoML dereferences the symlink and packages the target file contents into the Bento. The leaked file can then propagate further through export, push, or containerization workflows. An attacker can exfiltrate local files from the build host into the Bento artifact, exposing secrets such as cloud credentials, SSH keys, API tokens, environment files, or other sensitive local configurations. Because Bento artifacts are commonly exported, uploaded, stored, or containerized after build, the leaked file contents can spread beyond the original build machine. This issue has been fixed in version 1.4.39.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

在文件访问前对链接解析不恰当(链接跟随)

BentoML 后置链接漏洞

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及之前版本存在后置链接漏洞，该漏洞源于构建打包工作流遵循攻击者控制的符号链接，可能导致本地文件泄露。以下版本受到影响：1.4.38及之前版本。

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