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Public proof of conceptFix available

CVE-2025-54381

BentoML is Vulnerable to an SSRF Attack Through File Upload Processing

A public proof of concept exists; no exploitation attested.

  • Published2025-07-29
  • Fixed in1.4.19
  • WeaknessCWE-918

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

BentoML is a Python library for building online serving systems optimized for AI apps and model inference. In versions 1.4.0 until 1.4.19, the file upload processing system contains an SSRF vulnerability that allows unauthenticated remote attackers to force the server to make arbitrary HTTP requests. The vulnerability stems from the multipart form data and JSON request handlers, which automatically download files from user-provided URLs without validating whether those URLs point to internal network addresses, cloud metadata endpoints, or other restricted resources. The documentation explicitly promotes this URL-based file upload feature, making it an intended design that exposes all deployed services to SSRF attacks by default. Version 1.4.19 contains a patch for the issue.

Timeline

dates in UTC
  1. 2025-07-2923:15CVE publishedNVD

Versions per branch

NVD · OSV
Bentoml
BranchAffectedFixed in
1.4≥ 1.4.0, < 1.4.191.4.19

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • BentoML
    Affected
    • = >= 1.4.0, < 1.4.19no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-07-29

Fix

  1. Update Bentoml to 1.4.19

Advisories and patches

Detection

read 2026-11-01 01:02 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L
Published
2025-07-29
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-mrmq-3q62-6cc8

Frequently asked questions

What is CVE-2025-54381?

BentoML is a Python library for building online serving systems optimized for AI apps and model inference. In versions 1.4.0 until 1.4.19, the file upload processing system contains an SSRF vulnerability that allows unauthenticated remote attackers to force the server to make arbitrary HTTP requests. The vulnerability stems from the multipart form data and JSON request handlers, which automatically download files from user-provided URLs without validating whether those URLs point to internal network addresses, cloud metadata endpoints, or other restricted resources. The documentation explicitly promotes this URL-based file upload feature, making it an intended design that exposes all deployed services to SSRF attacks by default. Version 1.4.19 contains a patch for the issue.

Is CVE-2025-54381 actively exploited?

A proof-of-concept exploit exists for CVE-2025-54381, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-54381?

CVE-2025-54381 has a CVSS v3 base score of 9.9 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L.

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