PT-2026-53390 · Pypi · Bentoml

Published 2026-06-29 · Updated 2026-06-29

OSV

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Fix

Related Identifiers

PYSEC-2026-295

Affected Products

Bentoml

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2024-9070 · Security Note
• https://osv.dev/vulnerability/PYSEC-2026-295 · Vendor Advisory
• https://github.com/bentoml/BentoML/blob/v1.4.5/src/bentoml/_internal/server/runner_app.py#L301 · Note
• https://github.com/bentoml/BentoML · Note
• https://github.com/bentoml/BentoML/blob/a6f5f937be6ec278f3d4f3bbc6f3c8f9564820d7/src/bentoml/_internal/server/runner_app.py#L297 · Note
• https://github.com/advisories/GHSA-9g44-gwvm-hc44 · Note
• https://huntr.com/bounties/7be6fc22-be18-44ee-a001-ac7158d5e1a5 · Note
• https://pypi.org/project/bentoml · Note