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…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (12.3th 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

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.