MLflow Tracking Server Artifact Handler Directory Traversal Remote Code Execution Vulnerability
GHSA-q2r8-vmq7-fpx2 · CVE-2026-2033 · PYSEC-2026-2658
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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.
References
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-2033
- WEB https://github.com/mlflow/mlflow/pull/19260
- WEB https://github.com/mlflow/mlflow/commit/5bf2ec2bd4222a18d78631183ac7f6b752afe8a4
- PACKAGE https://github.com/mlflow/mlflow
- WEB https://github.com/mlflow/mlflow/releases/tag/v3.8.0rc0
- WEB https://www.zerodayinitiative.com/advisories/ZDI-26-105
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