CVE-2025-27520
Critical
Description
BentoML is a Python library for building online serving systems optimized for AI apps and model inference. A Remote Code Execution (RCE) vulnerability caused by insecure deserialization has been identified in the latest version (v1.4.2) of BentoML. It allows any unauthenticated user to execute arbitrary code on the server. It exists an unsafe code segment in serde.py. This vulnerability is fixed in 1.4.3.
SeverityCritical
CVSS9.8
Exploit probability—
ProductBentoml
PublishedApr 4, 2025
First seenApr 4, 2025
Weakness typeCWE-502Deserialization of untrusted data
How to fix
Update
- bentoml1.4.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| bentoml bentoml | 1.3.4 ≤ v ≤ 1.4.2 | — |
| bentomlPyPI | 1.3.4 ≤ v < 1.4.3 | 1.4.3 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.