CVE-2026-44346

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

Published May 27, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-w2pm-x38x-jp44 Dockerfile command injection via envs[*].name in bentofile.yaml (sibling fix-bypass of CVE-2026-33744 and CVE-2026-35043)
History
Type Values Removed Values Added
CPEs cpe:2.3:a:bentoml:bentoml:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Bentoml
Bentoml bentoml
Vendors & Products Bentoml
Bentoml bentoml
Type Values Removed Values Added
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.
Title BentoML: Dockerfile command injection via envs[*].name in bentofile.yaml
Weaknesses CWE-78
CWE-94
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
May 28, 2026, 3:09 PM
Reserved
May 5, 2026, 7:52 PM
Status
Analyzed
Published
May 27, 2026, 6:16 PM
Modified
Jun 17, 2026, 10:50 AM