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CVE-2026-118626— MLflow Tracking Server Issues Missing Authorization Privilege Escalation Vulnerability

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 跟踪服务器存在因缺少授权而导致的权限提升漏洞。该漏洞允许远程攻击者在受影响的 MLflow 安装中提升权限。利用此漏洞需要攻击者先通过身份验证。 该具体缺陷存在于 BEFORE_REQUEST_HANDLERS 的配置中。问题根源在于在允许访问相关功能之前未进行授权检查。攻击者可利用此漏洞将权限提升至通常受保护、普通用户无法访问的资源。该漏洞编号为 ZDI-CAN-32108。

AI Predicted 8.1 Difficulty: Easy

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-118626

Vulnerability Information
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Vulnerability Title
MLflow Tracking Server Issues Missing Authorization Privilege Escalation Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
MLflow Tracking Server Issues Missing Authorization Privilege Escalation Vulnerability. This vulnerability allows remote attackers to escalate privileges on affected installations of MLflow. Authentication is required to exploit this vulnerability. The specific flaw exists within the configuration of the BEFORE_REQUEST_HANDLERS. The issue results from the lack of authorization prior to allowing access to functionality. An attacker can leverage this vulnerability to escalate privileges to resources normally protected from the user. Was ZDI-CAN-32108.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
MLflow MLflow 3.14.0 -

II. Public POCs for CVE-2026-118626

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-118626

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Other References for CVE-2026-118626 (1)

Same Patch Batch · MLflow · 2026-11-03 · 6 CVEs total

CVE-2026-118627 MLflow SHAP load_explainer Deserialization of Untrusted Data Remote Code Execution Vulnera
CVE-2026-118628 MLflow get-artifacts Server-Side Request Forgery Information Disclosure Vulnerability
CVE-2026-118624 MLflow Tracking Server Jobs Missing Authorization Information Disclosure Vulnerability
CVE-2026-118623 MLflow PickleEvaluationArtifact Deserialization of Untrusted Data Remote Code Execution Vu
CVE-2026-118625 MLflow Tracking Server Missing Authorization Privilege Escalation Vulnerability

IV. Related Vulnerabilities

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