CVE-2025-10279

Privilege Escalation in mlflow/mlflow

Published Feb 2, 2026 CVSS 3.0 · 7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-4x5p-f36r-mxxr mlflow Creates of Temporary File in Directory with Insecure Permissions
History
Type Values Removed Values Added
First Time appeared Lfprojects
Lfprojects mlflow
CPEs cpe:2.3:a:lfprojects:mlflow:*:-:*:*:*:*:*:*
Vendors & Products Lfprojects
Lfprojects mlflow
Type Values Removed Values Added
First Time appeared Mlflow
Mlflow mlflow
Vendors & Products Mlflow
Mlflow mlflow
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Privilege Escalation in mlflow/mlflow
Weaknesses CWE-379
References
Metrics cvssV3_0

{'score': 7, 'vector': 'CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
@huntr_ai
Published
Updated
Feb 2, 2026, 5:48 PM
Reserved
Sep 11, 2025, 3:38 PM
Status
Analyzed
Published
Feb 2, 2026, 11:16 AM
Modified
Jun 17, 2026, 8:28 AM