MLflow is vulnerable to Stored Cross-Site Scripting (XSS) caused by unsafe parsing of YAML-based MLmodel artifacts in its web interface. An authenticated attacker can upload a malicious MLmodel file containing a payload that executes when another user views the artifact in the UI. This allows actions such as session hijacking or performing operations on behalf of the victim.

This issue affects MLflow version through 3.10.1
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-fh64-r2vc-xvhr MLflow is vulnerable to Stored Cross-Site Scripting (XSS) caused by unsafe parsing of YAML-based MLmodel artifacts in its web interface
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 09 Apr 2026 14:15:00 +0000


Wed, 08 Apr 2026 20:15:00 +0000

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

Tue, 07 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
Description MLflow is vulnerable to Stored Cross-Site Scripting (XSS) caused by unsafe parsing of YAML-based MLmodel artifacts in its web interface. An authenticated attacker can upload a malicious MLmodel file containing a payload that executes when another user views the artifact in the UI. This allows actions such as session hijacking or performing operations on behalf of the victim. This issue affects MLflow version through 3.10.1
Title Stored XSS via unsafe YAML parsing in MLflow
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N'}

ssvc

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


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published:

Updated: 2026-04-09T13:31:08.842Z

Reserved: 2026-03-24T13:13:32.905Z

Link: CVE-2026-33865

cve-icon Vulnrichment

Updated: 2026-04-07T13:10:10.733Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-04-07T13:16:46.840

Modified: 2026-04-09T14:16:30.703

Link: CVE-2026-33865

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-08T19:49:32Z

Weaknesses