CVE-2026-44346

HIGH

BentoML: Dockerfile command injection via envs[*].name in bentofile.yaml

Title source: cna
STIX 2.1

Description

BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.39, a malicious bentofile.yaml containing a newline-injected value in envs[*].name produces unquoted RUN directives in the BentoML-generated Dockerfile. When the victim runs bentoml containerize on the imported bento, those RUN directives execute on the host during docker build. This vulnerability is fixed in 1.4.39.

References (1)

Core 1
Core References

Scores

CVSS v3 8.8
EPSS 0.0027
EPSS Percentile 19.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-78 CWE-94
Status published
Products (3)
bentoml/bentoml < 1.4.39
bentoml/BentoML < 1.4.39
pypi/bentoml 0 - 1.4.39PyPI
Published May 27, 2026
Tracked Since May 27, 2026