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Vulnerability · Published Feb 20, 2026 · Assigned by zdi

CVE-2026-2033MLflow Tracking Server Artifact Handler Directory Traversal Remote Code Execution Vulnerability

High 7.3

In plain English

A high-severity path traversal in MLflow from MLflow. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 79% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)1.8%top 20.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPImlflow3.8.0rc0GHSA-q2r8-vmq7-fpx2
PyPImlflow3.8.0rc0PYSEC-2026-2658

Affected products (as reported)

VendorProductVersions
MLflow MLflow 3.1.1 and 5b9c01925c2e2a8cf0951f155a6a468ff99cfe0f

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References