CVE-2025-10279: mlflow world-writable temp directory allows code execution

Summary

CVE-2025-10279 affects mlflow version 2.20.3. The temporary directory used to create Python virtual environments gets world-writable permissions (0o777). An attacker with write access to /tmp can exploit a race condition to overwrite .py files in the virtual environment, leading to arbitrary code execution.

Mitigation

The issue is resolved in version 3.4.0.

Affected packages in the Exposure Registry

Matched by package name and ecosystem. Each entry shows whether the package delegates to a language model and how many tracked packages depend on it.

• mlflowPyPILLM dependency since 2024-05-30 · 17 tracked dependents

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