CVE-2026-35043CWE-78command-injection

CVE-2026-35043

High · published April 6, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
16.9
In the wild
Unconfirmed
What it is

BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.38, the cloud deployment path in src/bentoml/_internal/cloud/deployment.py was not included in the fix for CVE-2026-33744. Line 1648 interpolates system_packages directly into a shell command using an f-string without any quoting. The generated script is uploaded to BentoCloud as setup.sh and executed on the cloud build infrastructure during deployment, making this a remote code execution on the CI/CD tier. This vulnerability is fixed in 1.4.38.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00261 · 16.9th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-04-06T22:16Z
Affected products (1)
ProductVersionsFixed in
bentoml/bentoml< 1.4.381.4.38
References (2)
EPSS history
Timeline
  • 06 APR 17:10Z
    BentoML: command injection in cloud deployment setup script (deployment.py)
    cvelistv5