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BentoML CVE-2025-54381 (SSRF) Bypass

High

Synopsis

BentoML is an open source Python framework designed to facilitate the deployment of AI apps and models. It provides a comprehensive environment for packaging, serving, and monitoring models in production, with a simple API system for exposure.

 

In August 2025, a Server-Side Request Forgery vulnerability was discovered in BentoML versions 1.4.0 through 1.4.18. This SSRF vulnerability allows unauthenticated remote attackers to force the server to perform arbitrary HTTP requests.

 

After analysis, the patch applied was not sufficient and a bypass was possible.

However, it was later discovered that this vulnerability was already known by the BentoML team when Tenable Research initially reported it.

Solution

Upgrade to BentoML version 1.4.22 or later.

Disclosure Timeline

July 31, 2025 : Initial contact
August 14, 2025 : Second attempt
August 25, 2025: Vendor acknowledgment - Known issue
August 28, 2025: Fix released

All information within TRA advisories is provided “as is”, without warranty of any kind, including the implied warranties of merchantability and fitness for a particular purpose, and with no guarantee of completeness, accuracy, or timeliness. Individuals and organizations are responsible for assessing the impact of any actual or potential security vulnerability.

Tenable takes product security very seriously. If you believe you have found a vulnerability in one of our products, we ask that you please work with us to quickly resolve it in order to protect customers. Tenable believes in responding quickly to such reports, maintaining communication with researchers, and providing a solution in short order.

For more details on submitting vulnerability information, please see our Vulnerability Reporting Guidelines page.

If you have questions or corrections about this advisory, please email [email protected]

Risk Information

Tenable Advisory ID: TRA-2025-34
Credit:
Joshua Martinelle
CVSSv3 Base / Temporal Score:
7.5
CVSSv3 Vector:
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSSv4 Base Score:
8.7
CVSSv4 Vector:
AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected Products:
BentoML < 1.4.22
Risk Factor:
High

Advisory Timeline

September 08, 2025: Initial release