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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00225.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
MLflow MLflow unknown
Version Status Constraints
3.14.0 affected —

No data.

No data.

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Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://nvd.nist.gov/vuln/detail/CVE-2026-118626 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-118626 cve-icon
https://www.zerodayinitiative.com/advisories/ZDI-26-842/ cve-icon cve-icon cve-icon
History

Wed, 04 Nov 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Wed, 04 Nov 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-425
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

threat_severity

Moderate

Wed, 04 Nov 2026 02:00:00 +0000

Type Values Removed Values Added
First Time appeared Mlflow
Mlflow mlflow
Mlflow mlflow/mlflow
Vendors & Products Mlflow
Mlflow mlflow
Mlflow mlflow/mlflow

Wed, 04 Nov 2026 00:00:00 +0000

Type Values Removed Values Added
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.
Title MLflow Tracking Server Issues Missing Authorization Privilege Escalation Vulnerability
Weaknesses CWE-862
References
Metrics cvssV3_0

{'score': 5.4, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: zdi

Published:

Updated: 2026-11-05T04:55:58.937Z

Reserved: 2026-10-28T16:56:57.381Z

Link: CVE-2026-118626

cve-icon Vulnrichment

Updated: 2026-11-04T15:11:54.274Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-04T00:17:23.737

Modified: 2026-11-05T05:18:19.950

Link: CVE-2026-118626

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-11-03T23:45:50Z

Links: CVE-2026-118626 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T14:15:15Z

Weaknesses