CVE-2026-44346

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

HIGH
8.8
CVSS Score
Published: May 27, 2026 at 05:22 PM UTC
Updated: June 17, 2026 at 10:50 AM UTC
1 product affected across 1 vendorBentoml

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Severity
HIGH8.8
Exploit prediction
EPSS 0.3%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.4.39
Affected range stops below 1.4.39, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

x_refsource_CONFIRMExploitMitigationVendor Advisory
Source: cverecord
https://github.com/bentoml/BentoML/security/advisories/GHSA-w2pm-x38x-jp44

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-78CWE-94

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