Sign in
Deutsch English Español Polski
Critical

BentoML deserialization vulnerability

  • Disclosed: 20.03.2025
  • Updated: 11.10.2026 12:20

A deserialization vulnerability exists in BentoML's runner server in bentoml/bentoml versions <=1.3.4.post1. By setting specific parameters, an attacker can execute unauthorized arbitrary code on the server, causing severe harm. The vulnerability is triggered when the args-number parameter is greater than 1, leading to automatic deserialization and arbitrary code execution.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Python (PyPI) bentoml <= 1.4.5 no fix

References

CVSS score 9.8/10
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-502
Platform
Python (PyPI)
Package
bentoml
Disclosed
20.03.2025
Updated
11.10.2026 12:20

Sources and licenses

OSV / GitHub Advisory Database - GHSA-9g44-gwvm-hc44 - CC BY 4.0

OSV / GitHub Advisory Database - PYSEC-2026-295 - PyPA Advisory Database; CC BY 4.0

Vulnerability history: bentoml

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (17) in the archive
Total entries
17
First → latest
04.2024 07.2026
Without a fix
5
Exploited in attacks
0

Severity breakdown

  • Critical 5
  • High 10
  • Medium 2

Disclosures per year

Severity:
  1. A vulnerability was found in bentoml OpenLLM 0.6.30. This affects the function async_run_command of the file src/openllm/common.py of the component Model Repository Directory Name Handler. Performing
    High · 7.8 CVE-2026-15035 <= 0.6.30 no fix
  2. Dockerfile command injection via envs[*].name in bentofile.yaml (sibling fix-bypass of CVE-2026-33744 and CVE-2026-35043)
    High · 8.8 CVE-2026-44346 < 1.4.39 1.4.39
  3. BentoML Dockerfile command injection via docker.base_image (sister of pending GHSA-w2pm-x38x-jp44 / CVE-2026-33744 / CVE-2026-35043)
    High · 8.8 CVE-2026-44345 < 1.4.39 1.4.39
  4. BentoML: SSTI via Unsandboxed Jinja2 in Dockerfile Generation
    High · 8.8 CVE-2026-35044 < 1.4.38 1.4.38
  5. BentoML: Command Injection in cloud deployment setup script
    High · 7.8 CVE-2026-35043 < 1.4.38 1.4.38
  6. BentoML has Dockerfile Command Injection via system_packages in bentofile.yaml
    High · 7.8 CVE-2026-33744 < 1.4.37 1.4.37
  7. BentoML Vulnerable to Arbitrary File Write via Symlink Path Traversal in Tar Extraction
    High CVE-2026-27905 < 1.4.36 1.4.36
  8. BentoML has a Path Traversal via Bentofile Configuration
    High · 7.4 CVE-2026-24123 < 1.4.34 1.4.34
  9. BentoML SSRF Vulnerability in File Upload Processing
    Critical · 9.9 CVE-2025-54381 >= 1.4.0, < 1.4.19 1.4.19
  10. BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.8, there was an insecure deserialization in BentoML's runner server. By setting
    Critical · 9.8 CVE-2025-32375 >= 1.0.0, < 1.4.8 1.4.8
  11. BentoML Allows Remote Code Execution (RCE) via Insecure Deserialization
    Critical · 9.8 CVE-2025-27520 >= 1.3.4, < 1.4.3 1.4.3
  12. BentoML Denial of Service (DoS) via Multipart Boundary
    High · 7.5 CVE-2024-9056 <= 1.4.5 no fix
  13. BentoML deserialization vulnerability this entry
    Critical · 9.8 CVE-2024-9070 <= 1.4.5 no fix
  14. BentoML vulnerable to Uncontrolled Resource Consumption
    High · 7.5 ghsa-hh3j-9m59-p8vc <= 1.3.9 no fix
  15. Insecure deserialization in BentoML
    Critical · 9.8 CVE-2024-2912 < 1.2.5 1.2.5

Know which vulnerabilities affect your application

With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.

Connect your application
DockRay newsletter

Application security in your inbox

Important vulnerabilities, actionable guidance and practical advice for your applications. Choose your technologies and follow what matters to your project.

  • A daily digest of new vulnerabilities, critical ones included.
  • Notifications about important updates.
  • Practical advice on application security and monitoring.

Leave empty to receive updates for every technology.

Privacy policy

Free to subscribe. Unsubscribe with one click in any email.