Description
MLflow Tracking Server Model Creation 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 model 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-26921.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| MLflow | MLflow | 2.21.3 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
-
rmhowe425/POC-CVE-2025-11201 ★ 0 · Sep 27, 2026
PoC for MLFlow unauth RCE
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- MLflow Tracking Server - Unauthenticated Model Source Path Traversal RCE http/cves/2025/CVE-2025-11201.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | mlflow | >= 3.0.0rc0, < 3.0.0 | 3.0.0 | GHSA-5cvj-7rg6-jggj |
| PyPI | mlflow | < 2.22.4 | 2.22.4 | GHSA-5cvj-7rg6-jggj |
| PyPI | mlflow | < 2.22.4 · >= 3.0.0rc0, < 3.0.0 | 2.22.4, 3.0.0 | PYSEC-2026-1640 |
References
- ZDI-25-931
- vendor-provided URL vendor-advisory