| Component | MLflow |
| Severity | high (CVSS 7.3) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| Published (NVD) | 2026-02-20 |
| Last modified | 2026-07-15 |
| Affected versions | not published yet, see the advisory |
| Fixed in | see the vendor advisory |
| Weakness | CWE-22 |
| CISA KEV | not listed |
NVD 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.
What to do
- NVD lists no fixed version yet: follow the vendor advisory below and keep MLflow off the public internet until a fix ships.
- Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-2033
- https://github.com/mlflow/mlflow/pull/19260
- https://www.zerodayinitiative.com/advisories/ZDI-26-105/
- https://access.redhat.com/security/cve/CVE-2026-2033
- https://bugzilla.redhat.com/show_bug.cgi?id=2441508
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2033.json
Read more
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