CVE-2026-35044: BentoML is a Python library for building online serving systems optimized for AI apps and model inference

This month

HIGH 8.8UPGRADE

CVE-2026-35044 is a high-severity flaw (CVSS 8.8) affecting bentoml. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.38, the Dockerfile generation function generate_containerfile() in src/bentoml/_internal/container/generate.py uses an unsandboxed jinja2.Environment with the jinja2.ext.do extension to render user-provided dockerfile_template files. When a victim imports a malicious bento archive and runs bentoml containerize, attacker-controll

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-1336
Published	2026-04-06
Last modified	2026-10-23

Publisher (CNA): GitHub, Inc. · Vendor: bentoml

Am I affected?

Timeline

2026-04-06 18:16 UTCPublished CVE record published
2026-10-23 23:10 UTCUpdated Record last modified

bentoml bentoml UPGRADE

Affected: < 1.4.38

Fixed in: 1.4.38

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy bentoml || rpm -q bentoml || bentoml --version

2. UPGRADE to 1.4.38 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bentoml

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bentoml

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Python (pip) · bentoml · FIXED · 1.4.38 · vulnerable: <= 1.4.37 · source

pip install --upgrade "bentoml>=1.4.38" pip show bentoml

Fedora 46 · rubygem-eventmachine · FIXED · 1.2.7-37.fc46 · FEDORA-2026-7194c202a2 · source

sudo dnf upgrade --advisory=FEDORA-2026-7194c202a2

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/bentoml/BentoML/security/advisories/GHSA-v959-cwq9-7hr6

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Related CVEs

CVE-2026-35043 HIGH 7.8 UPGRADE BentoML is a Python library for building online serving systems optimized for AI apps and model inference

References

← Back to latest CVEs