Vulnerability · Published Mar 27, 2026 · Assigned by GitHub_M

CVE-2026-33744BentoML has Dockerfile Command Injection via system_packages in bentofile.yaml

High 7.8

In plain English

A high-severity code injection in BentoML from bentoml. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High

Exploit odds (30 days)0.3%top 82.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.37, the `docker.system_packages` field in `bentofile.yaml` accepts arbitrary strings that are interpolated directly into Dockerfile `RUN` commands without sanitization. Since `system_packages` is semantically a list of OS package names (data), users do not expect values to be interpreted as shell commands. A malicious `bentofile.yaml` achieves arbitrary command execution during `bentoml containerize` / `docker build`. Version 1.4.37 fixes the issue.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	bentoml	1.4.37	GHSA-jfjg-vc52-wqvf
PyPI	bentoml	1.4.37	PYSEC-2026-157

Affected products (as reported)

Vendor	Product	Versions
bentoml	BentoML	< 1.4.37

Weakness: CWE-94 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://github.com/bentoml/BentoML/security/advisories/GHSA-jfjg-vc52-wqvf x_refsource_CONFIRM