CVE-2025-27520

critical · 9.8

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.

9.8

CVSS

40.6%

EPSS (exploit prob.)

99th

EPSS percentile

2025-04-04

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-502

Affected products

Vendor	Product	Affected versions
bentoml	bentoml	>= 1.3.4, <= 1.4.2

Check a specific version with /api/v1/cve/match.

References

https://github.com/bentoml/BentoML/commit/b35f4f4fcc53a8c3fe8ed9c18a013fe0a728e194
https://github.com/bentoml/BentoML/security/advisories/GHSA-33xw-247w-6hmc
https://github.com/bentoml/BentoML/security/advisories/GHSA-33xw-247w-6hmc

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-27520