Read the docs
TI-2025-23454 Aliases CVE-2025-32375GHSA-7v4r-c989-xh26

Insecure Deserialization leads to RCE in BentoML's runner server

Priority HIGH 82CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-502.

Summary

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 specific headers and parameters in the POST request, it is possible to execute any unauthorized arbitrary code on the server, which will grant the attackers to have the initial access and information disclosure on the server. This vulnerability is fixed in 1.4.8.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.52415 98th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed BentoML (bentoml): 1.4.8bentoml (PyPI): 1.4.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
bentomlBentoML1.0 to before 1.4.81.4.8Patch availableCNA
—bentoml (PyPI)1.0.0a1 to before 1.4.81.4.8Patch availableGHSA-7v4r-c989-xh26
  • BentoML Vendorbentoml Affected 1.0 to before 1.4.8 Fixed in 1.4.8 Patch available CNA
  • bentoml (PyPI) Vendor— Affected 1.0.0a1 to before 1.4.8 Fixed in 1.4.8 Patch available GHSA-7v4r-c989-xh26

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:bentoml:bentoml:*:*:*:*:*:*:*:*1.0.0 to before 1.4.8Vulnerablebentoml
  • cpe:2.3:a:bentoml:bentoml:*:*:*:*:*:*:*:* Versions 1.0.0 to before 1.4.8 Vulnerable ·bentoml

Remediation

  • Fix · CNA BentoML (bentoml) Fixed in 1.4.8
  • Fix · GHSA-7v4r-c989-xh26 bentoml (PyPI) Fixed in 1.4.8 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-32375
  2. 2026-10-03 Alias added: GHSA-7v4r-c989-xh26

References

  • TI-2025-34190 BentoML is Vulnerable to an SSRF Attack Through File Upload Processing CVSS 3.1CRITICAL 9.9
  • TI-2025-20352 BentoML Allows Remote Code Execution (RCE) via Insecure Deserialization CVSS 3.1CRITICAL 9.8
  • TI-2026-27247 BentoML has a Server-Side Template Injection via unsandboxed Jinja2 Environment in Dockerfile generation CVSS 3.1CRITICAL 9.6
  • TI-2026-32312 BentoML: Dockerfile command injection via envs[*].name in bentofile.yaml CVSS 3.1HIGH 8.8
  • TI-2026-32311 BentoML: Dockerfile command injection via docker.base_image CVSS 3.1HIGH 8.8
  • TI-2026-22249 BentoML has an Arbitrary File Write via Symlink Path Traversal in Tar Extraction CVSS 4.0HIGH 8.6
See all 10 →

Sources