CVE-2026-44346: Bentoml

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Bentoml Bentoml: before 1.4.39 (fixed in 1.4.39)

Published 2026-05-27. Last modified 2026-06-17.