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  5. CVE-2025-10279

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

February 2, 2026

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

  • github.com/advisories/GHSA-4x5p-f36r-mxxr
  • github.com/mlflow/mlflow
  • github.com/mlflow/mlflow/commit/1d7c8d4cf0a67d407499a8a4ffac387ea4f8194a
  • huntr.com/bounties/01d3b81e-13d1-43aa-b91a-443aec68bdc8
  • nvd.nist.gov/vuln/detail/CVE-2025-10279

Code Behaviors & Features

Detect and mitigate CVE-2025-10279 with GitLab Dependency Scanning

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Affected versions

All versions before 3.4.0rc0

Fixed versions

  • 3.4.0rc0

Solution

Upgrade to version 3.4.0rc0 or above.

Impact 7 HIGH

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-379: Creation of Temporary File in Directory with Insecure Permissions

Source file

pypi/mlflow/CVE-2025-10279.yml

Spotted a mistake? Edit the file on GitLab.

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