BIT-mlflow-2026-2652

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Import Source

https://github.com/bitnami/vulndb/tree/main/data/mlflow/BIT-mlflow-2026-2652.json

JSON Data

https://api.osv.dev/v1/vulns/BIT-mlflow-2026-2652

Aliases

Published

2026-05-19T08:53:02Z

Modified

2026-09-08T08:48:13Z

Summary

Authentication Bypass in mlflow/mlflow

Details

A vulnerability in mlflow/mlflow versions 3.9.0 and earlier allows unauthenticated access to certain FastAPI routes when the server is started with authentication enabled (--app-name basic-auth) and served via uvicorn (ASGI). The FastAPI permission middleware only enforces authentication on /gateway/ routes, leaving other routes such as the Job API (/ajax-api/3.0/jobs/*) and the OpenTelemetry trace ingestion API (/v1/traces) unprotected. This allows unauthenticated remote attackers to submit jobs, read job results, cancel running jobs, and inject arbitrary trace data into experiments. The issue arises from an architectural mismatch between Flask and FastAPI authentication mechanisms, where the _find_fastapi_validator() function fails to handle non-/gateway/ paths, resulting in a complete authentication bypass. This vulnerability is fixed in version 3.10.0.

Database specific

{
    "cpes": [
        "cpe:2.3:a:lfprojects:mlflow:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
}

References

Affected packages

Bitnami / mlflow

Package

Name: mlflow
Purl: pkg:bitnami/mlflow

Severity

8.6 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L CVSS Calculator

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

3.10.0

Database specific

source

"https://github.com/bitnami/vulndb/tree/main/data/mlflow/BIT-mlflow-2026-2652.json"