PT-2026-30820 · Mlflow · Mlflow

Sławomir Zakrzewski · Published 2026-04-07 · Updated 2026-04-07 · CVE-2026-33865

NVD

CVSS v4.0

5.1

Medium

AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-33865

Affected Products

Mlflow

References · 3

• https://github.com/mlflow/mlflow/pull/21435 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-33865 · Security Note
• https://cert.pl/en/posts/2026/04/CVE-2026-33865 · Note