CVE-2026-35043

BentoML: command injection in cloud deployment setup script (deployment.py)

State: Published
Severity: 7.8 High
Published: Apr 6, 2026
Updated: Apr 7, 2026
Reserved: Mar 31, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected Products

Product	Versions
BentoMLbentoml	< 1.4.38Affected

References

https://github.com/bentoml/BentoML/security/advisories/GHSA-fgv4-6jr3-jgfw

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