CVE-2026-2033

MLflow Tracking Server Artifact Handler Directory Traversal Remote Code Execution Vulnerability

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.

Scores

Weaknesses (CWE)

• CWE-22

Advisories

• GHSA-q2r8-vmq7-fpx2 — MLflow Tracking Server Artifact Handler Directory Traversal Remote Code Execution Vulnerability
• PYSEC-2026-2658 — MLflow Tracking Server Artifact Handler Directory Traversal Remote Code Execution Vulnerability

European references

• ENISA EUVD · EUVD-2026-7508
• GCVE · GCVE-0-2026-2033

Affected products

References

• https://www.zerodayinitiative.com/advisories/ZDI-26-105/
• https://github.com/mlflow/mlflow/pull/19260
• 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

Sources