CVE-2025-10279
High
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.
SeverityHigh
CVSS7.0
Exploit probability—
ProductLfprojects Mlflow
PublishedFeb 2, 2026
First seenFeb 2, 2026
Weakness typeCWE-379CWE-379
How to fix
Update
- lfprojects mlflow3.4.0 or later
- mlflow3.4.0rc0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| lfprojects mlflow | v < 3.4.0 | 3.4.0 |
| mlflowPyPI | v < 3.4.0rc0 | 3.4.0rc0 |
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