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TI-2026-26123 Aliases CVE-2026-33744GHSA-jfjg-vc52-wqvf

BentoML has Dockerfile Command Injection via system_packages in bentofile.yaml

Priority HIGH 69CWE-94Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-94.

Summary

BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.37, the `docker.system_packages` field in `bentofile.yaml` accepts arbitrary strings that are interpolated directly into Dockerfile `RUN` commands without sanitization. Since `system_packages` is semantically a list of OS package names (data), users do not expect values to be interpreted as shell commands. A malicious `bentofile.yaml` achieves arbitrary command execution during `bentoml containerize` / `docker build`. Version 1.4.37 fixes the issue.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00261 17th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed BentoML (bentoml): 1.4.37bentoml (PyPI): 1.4.37

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
bentomlBentoMLbefore 1.4.371.4.37Patch availableCNA
—bentoml (PyPI)before 1.4.371.4.37Patch availableGHSA-jfjg-vc52-wqvf
  • BentoML Vendorbentoml Affected before 1.4.37 Fixed in 1.4.37 Patch available CNA
  • bentoml (PyPI) Vendor— Affected before 1.4.37 Fixed in 1.4.37 Patch available GHSA-jfjg-vc52-wqvf

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:bentoml:bentoml:*:*:*:*:*:*:*:*before 1.4.37Vulnerablebentoml
  • cpe:2.3:a:bentoml:bentoml:*:*:*:*:*:*:*:* Versions before 1.4.37 Vulnerable ·bentoml

Remediation

  • Fix · CNA BentoML (bentoml) Fixed in 1.4.37
  • Fix · GHSA-jfjg-vc52-wqvf bentoml (PyPI) Fixed in 1.4.37 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-33744
  2. 2026-10-03 Alias added: GHSA-jfjg-vc52-wqvf

References

Exploit 1

Advisory 1

Other 2

  • TI-2025-34190 BentoML is Vulnerable to an SSRF Attack Through File Upload Processing CVSS 3.1CRITICAL 9.9
  • TI-2025-23454 Insecure Deserialization leads to RCE in BentoML's runner server CVSS 3.1CRITICAL 9.8
  • TI-2025-20352 BentoML Allows Remote Code Execution (RCE) via Insecure Deserialization CVSS 3.1CRITICAL 9.8
  • TI-2026-27247 BentoML has a Server-Side Template Injection via unsandboxed Jinja2 Environment in Dockerfile generation CVSS 3.1CRITICAL 9.6
  • TI-2026-32312 BentoML: Dockerfile command injection via envs[*].name in bentofile.yaml CVSS 3.1HIGH 8.8
  • TI-2026-32311 BentoML: Dockerfile command injection via docker.base_image CVSS 3.1HIGH 8.8
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences