What’s Vulnerable › Vulnerabilities

CVE-2025-10279: Privilege Escalation in mlflow/mlflow

• Severity: high (CVSS 7.0 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-02-02 · updated 2026-06-17
• Weakness: CWE-379

Description

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.

Affected products

• mlflow/mlflow: before 3.4.0 — fixed in 3.4.0

How to fix

Upgrade to a fixed version: mlflow/mlflow 3.4.0. Check the vendor advisory for mitigations.

References

• https://github.com/mlflow/mlflow/commit/1d7c8d4cf0a67d407499a8a4ffac387ea4f8194a
• https://huntr.com/bounties/01d3b81e-13d1-43aa-b91a-443aec68bdc8

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