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CVE-2026-69146— MLflow: LogInputs endpoint bypasses per-run UPDATE authorization in basic-auth

Quick assessment

Affected
mlflow mlflow
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MLflow是MLflow组织开源的一个简化机器学习开发的平台,包括跟踪实验、将代码打包成可重复的运行以及共享和部署模型。 MLflow 3.13.0版本至3.15.0之前版本存在授权问题漏洞，该漏洞源于mlflow/server/auth包中的BEFORE_REQUEST_HANDLERS缺少LogInputs，导致已认证用户无需UPDATE权限即可调用log-inputs接口为其他用户的run_id注入DatasetInput记录。

CVSS 6.5 · Medium EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1195 · Supply Chain Compromise

Affected Version Matrix 1

VendorProduct Version RangeStatus
mlflow mlflow < 3.15.0 affected
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I. Basic Information for CVE-2026-69146

Vulnerability Information
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Vulnerability Title
MLflow: LogInputs endpoint bypasses per-run UPDATE authorization in basic-auth
Source: CVE Program / CVE List V5
Vulnerability Description
MLflow is an open source AI engineering platform for agents, large language models, and machine learning models. From 3.13.0 until 3.15.0, LogInputs is absent from BEFORE_REQUEST_HANDLERS in the mlflow/server/auth package, allowing any authenticated user to call POST /api/2.0/mlflow/runs/log-inputs for another user's run_id and inject attacker-controlled DatasetInput records into the dataset_inputs lineage metadata without UPDATE permission. This issue is fixed in version 3.15.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
MLflow 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MLflow是MLflow组织开源的一个简化机器学习开发的平台,包括跟踪实验、将代码打包成可重复的运行以及共享和部署模型。 MLflow 3.13.0版本至3.15.0之前版本存在授权问题漏洞，该漏洞源于mlflow/server/auth包中的BEFORE_REQUEST_HANDLERS缺少LogInputs，导致已认证用户无需UPDATE权限即可调用log-inputs接口为其他用户的run_id注入DatasetInput记录。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
mlflow mlflow < 3.15.0 -

II. Public POCs for CVE-2026-69146

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III. Intelligence Information for CVE-2026-69146

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Patches & Fixes for CVE-2026-69146 (2)

Vendor Advisories for CVE-2026-69146 (1)

Vendor Pages for CVE-2026-69146 (1)

Same Patch Batch · mlflow · 2026-08-17 · 3 CVEs total

CVE-2026-64849 9.3 CRITICAL MLflow: Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed
CVE-2026-69148 7.1 HIGH MLflow: CreateModelVersion source validation does not check READ permission on referenced

IV. Related Vulnerabilities

Same product: mlflow
Same vendor: mlflow
Same weakness: CWE-862

V. Comments for CVE-2026-69146

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