PYSEC-2026-159

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/bentoml/PYSEC-2026-159.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-159
Aliases
Published
2026-04-06T18:16:41.990Z
Modified
2026-05-20T12:35:10.976510Z
Severity
  • 9.6 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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 dockerfiletemplate files. When a victim imports a malicious bento archive and runs bentoml containerize, attacker-controlled Jinja2 template code executes arbitrary Python directly on the host machine, bypassing all container isolation. This vulnerability is fixed in 1.4.38.

References

Affected packages

PyPI / bentoml

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.4.38

Affected versions

0.*
0.0.1
0.0.2
0.0.3
0.0.5
0.0.6a0
0.0.7.dev0
0.0.7
0.0.8
0.0.8.post1
0.0.9
0.1.1
0.1.2
0.2.0
0.2.1
0.2.2
0.3.0
0.3.1
0.3.3
0.3.4
0.4.0
0.4.1
0.4.2
0.4.3
0.4.4
0.4.5
0.4.7
0.4.8
0.4.9
0.5.0
0.5.1
0.5.2
0.5.3
0.5.4
0.5.5
0.5.6
0.5.7
0.5.8
0.6.0
0.6.1
0.6.2
0.6.3
0.7.0
0.7.1
0.7.2
0.7.3
0.7.4
0.7.5
0.7.6
0.7.7
0.7.8
0.8.0
0.8.1
0.8.2
0.8.3
0.8.4
0.8.5
0.8.6
0.9.0rc0
0.9.0
0.9.1
0.9.2
0.10.0
0.10.1
0.11.dev0
0.11.0
0.12.0
0.12.1
0.13.0
0.13.1
0.13.2
1.*
1.0.0.dev0
1.0.0.dev1
1.0.0a1
1.0.0a2
1.0.0a3
1.0.0a4
1.0.0a5
1.0.0a6
1.0.0a7
1.0.0rc0
1.0.0rc1
1.0.0rc2
1.0.0rc3
1.0.0
1.0.2
1.0.3
1.0.4
1.0.5
1.0.6
1.0.7
1.0.8
1.0.9
1.0.10
1.0.11
1.0.12
1.0.13
1.0.14
1.0.15
1.0.16
1.0.17
1.0.18
1.0.19
1.0.20
1.0.21
1.0.22
1.0.23
1.0.24
1.0.25
1.1.0
1.1.1
1.1.2
1.1.3
1.1.4
1.1.5
1.1.6
1.1.7
1.1.8
1.1.9
1.1.10
1.1.11
1.2.0a0
1.2.0a1
1.2.0a2
1.2.0a3
1.2.0a4
1.2.0a5
1.2.0a6
1.2.0a7
1.2.0rc1
1.2.0
1.2.1a1
1.2.1
1.2.2
1.2.3
1.2.4
1.2.5
1.2.6
1.2.7
1.2.8
1.2.9
1.2.10
1.2.11
1.2.12
1.2.13
1.2.14
1.2.15
1.2.16
1.2.17
1.2.18
1.2.19
1.2.20
1.3.0a1
1.3.0a2
1.3.0a3
1.3.0
1.3.1
1.3.2
1.3.3
1.3.4.post1
1.3.5
1.3.6
1.3.7
1.3.8
1.3.9
1.3.10
1.3.11
1.3.12
1.3.13
1.3.14
1.3.15
1.3.16
1.3.17
1.3.18
1.3.19
1.3.20
1.3.21
1.3.22
1.4.0a1
1.4.0a2
1.4.0
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
1.4.6
1.4.7
1.4.8
1.4.9
1.4.10
1.4.11
1.4.12
1.4.13
1.4.14
1.4.15
1.4.16
1.4.17
1.4.18
1.4.19
1.4.20
1.4.21
1.4.22
1.4.23
1.4.24
1.4.25
1.4.26
1.4.27
1.4.28
1.4.29
1.4.30
1.4.31
1.4.32
1.4.33
1.4.34
1.4.35
1.4.36
1.4.37

Database specific

source
"https://github.com/pypa/advisory-database/blob/main/vulns/bentoml/PYSEC-2026-159.yaml"