What is CVE-2026-33744?

CVE-2026-33744 is a high-severity vulnerability in Bentoml, classified under Code Injection. CVSS score: 7.8/10. Published 2026-03-27.

How severe is CVE-2026-33744?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Bentoml

CVE-2026-33744

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.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.003 (17.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Bentoml — versions < 1.4.37

Weakness classification (CWE)

CWE-94 — Code Injection

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-33744?: CVE-2026-33744 is a high-severity vulnerability in Bentoml, classified under Code Injection. CVSS score: 7.8/10. Published 2026-03-27.
How severe is CVE-2026-33744?: High severity. CVSS v3 base score is 7.8 out of 10.