Path Traversal in Mlflow

CVE-2026-2033

MLflow Tracking Server Artifact Handler Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MLflow Tracking Server. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of artifact file paths. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-26649.

Vulnerability class: Path Traversal (Directory Traversal)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.017 (76.2th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-2033: held from 0.017 to 0.017.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: +0.000

Affected products

  • Mlflow — versions 3.1.1 and 5b9c01925c2e2a8cf0951f155a6a468ff99cfe0f

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-2033?
CVE-2026-2033 is a high-severity vulnerability in Mlflow, classified under Path Traversal. CVSS score: 7.3/10. Published 2026-02-20.
How severe is CVE-2026-2033?
High severity. CVSS v3 base score is 7.3 out of 10.