Insecure Permissions in MLflow Allow Arbitrary Code Execution
CVE-2025-10279

7HIGH

Key Information:

Vendor

Mlflow

Status
Mlflow/mlflow
Vendor
CVE Published:
2 February 2026

What is CVE-2025-10279?

In MLflow version 2.20.3, a vulnerability exists due to the temporary directory being assigned world-writable permissions (0o777). This allows potentially malicious users with write access to the /tmp directory to exploit a race condition. By overwriting .py files in the virtual environment, an attacker can execute arbitrary code, posing significant security risks. This vulnerability has been addressed in version 3.4.0.

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Affected Version(s)

mlflow/mlflow < 3.4.0

References

https://huntr.com/bounties/01d3b81e-13d1-43aa-b91a-443aec...
https://github.com/mlflow/mlflow/commit/1d7c8d4cf0a67d407...

CVSS V3.0

Score:
7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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