CVEvulnerability

CVE-2026-35044

9.6 CRITICAL Published 2026-04-06 Modified 2026-10-23 Official page ↗
Status
Analyzed
Published
2026-04-06
Last modified
2026-10-23
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
9.6 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weaknesses
CWE-1336

Description

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.

Affected configurations

• bentoml bentoml (< 1.4.38)

Related

Weakness · CWE (1)

  • CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine weakness

References