Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-35044

BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.38, the Dockerfile generation function generate_containerfile() in src/bentoml/_internal/container/generate.py uses an unsandboxed jinja2.Environment with the jinja2.ext.do extension to render user-provided dockerfile_template files. When a victim imports a malicious bento archive and runs bentoml containerize, attacker-controlled Jinja2 template code executes arbitrary Python directly on the host machine, bypassing all container isolation. This vulnerability is fixed in 1.4.38.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 12.6%
CVSS Severity
CVSS v3 Score 8.8
Products affected by CVE-2026-35044


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