XSS in Lfprojects Mlflow
CVE-2026-33865
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
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (12.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Lfprojects Mlflow
- Mlflow — versions 0
Weakness classification (CWE)
References
- cvd@cert.pl (Patch, patch, Issue Tracking)
- cvd@cert.pl (Third Party Advisory, third-party-advisory)
- cvd@cert.pl (Exploit, technical-description, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2026-33865?
- CVE-2026-33865 is a medium-severity vulnerability in Lfprojects Mlflow, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-04-07.
- How severe is CVE-2026-33865?
- Medium severity. CVSS v3 base score is 5.4 out of 10.