CVE-2026-33865: Stored XSS via unsafe YAML parsing in MLflow
Published Apr 7, 2026
·Updated
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
Affected Software
2 affected componentsFixes available
pip/mlflow<=3.10.1
3.11.1
Lfprojects Mlflow<=3.10.1
Remediation
Patch Available
Event History
Apr 7, 2026
CVE Published
via MITRE·12:57 PM
Data Sourced
via MITRE·12:57 PM
DescriptionWeakness
Data Sourced
via NVD·01:16 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·01:16 PM
RemedyAffected Software
Advisory Published
via GitHub·03:30 PM
Data Sourced
via GitHub·03:30 PM
DescriptionWeaknessAffected Software