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AI agent vulnerability · MLflow

CVE-2025-10279: mlflow Creates of Temporary File in Directory with Insecure Permissions

highCVSS 3.0 7.0GHSA-4x5p-f36r-mxxr

In mlflow version 2.20.3, the temporary directory used for creating Python virtual environments is assigned insecure world-writable permissions (0o777). This vulnerability allows an attacker with write access to the /tmp directory to exploit a race condition and overwrite .py files in the virtual environment, leading to arbitrary code execution. The issue is resolved in version 3.4.0.

Published Feb 2, 2026

Affected packages

mlflow

Ecosystem
PyPI
Affected
< 3.4.0rc0
Fixed in
3.4.0rc0
Check
pip show mlflow

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

In mlflow version 2.20.3, the temporary directory used for creating Python virtual environments is assigned insecure world-writable permissions (0o777). This vulnerability allows an attacker with write access to the /tmp directory to exploit a race condition and overwrite .py files in the virtual environment, leading to arbitrary code execution. The issue is resolved in version 3.4.0.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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