Description
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.
Affected products
bentoml: bentoml
References2
- github.com/bentoml/BentoML/security/advisories/GHSA-fgv4-6jr3-j… ExploitVendor Advisory
- github.com/bentoml/BentoML/security/advisories/GHSA-fgv4-6jr3-j… ExploitVendor Advisory
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 25 · as of 12 November 2026
- CWE
- CWE-78
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