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TI-2025-09434 Aliases CVE-2025-10279GHSA-4x5p-f36r-mxxr

Privilege Escalation in mlflow/mlflow

Priority HIGH 66CWE-379Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00241 15th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed mlflow/mlflow (mlflow): 3.4.0mlflow (PyPI): 3.4.0rc0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MLflowmlflow/mlflowbefore 3.4.03.4.0Patch availableCNA
—mlflow (PyPI)before 3.4.0rc03.4.0rc0Patch availableGHSA-4x5p-f36r-mxxr
  • mlflow/mlflow VendorMLflow Affected before 3.4.0 Fixed in 3.4.0 Patch available CNA
  • mlflow (PyPI) Vendor— Affected before 3.4.0rc0 Fixed in 3.4.0rc0 Patch available GHSA-4x5p-f36r-mxxr

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:lfprojects:mlflow:*:-:*:*:*:*:*:*before 3.4.0VulnerableMLflow
  • cpe:2.3:a:lfprojects:mlflow:*:-:*:*:*:*:*:* Versions before 3.4.0 Vulnerable ·MLflow

Remediation

  • Fix · CNA mlflow/mlflow (mlflow) Fixed in 3.4.0
  • Fix · GHSA-4x5p-f36r-mxxr mlflow (PyPI) Fixed in 3.4.0rc0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-10279
  2. 2026-10-03 Alias added: GHSA-4x5p-f36r-mxxr

References

Exploit 1

Patch 1

Advisory 1

Other 1

  • TI-2026-46366 Server-side request forgery in mlflow KEVCVSS 3.1CRITICAL 9.3
  • TI-2023-03518 Absolute Path Traversal in mlflow/mlflow CVSS 3.1CRITICAL 10.0
  • TI-2023-01113 Path Traversal: '\..\filename' in mlflow/mlflow CVSS 3.1CRITICAL 9.8
  • TI-2025-14028 Command Injection in mlflow/mlflow CVSS 3.1CRITICAL 10.0
  • TI-2023-05540 MLflow Authentication Bypass CVSS 3.1CRITICAL 9.8
  • TI-2023-02603 Path Traversal: '\..\filename' in mlflow/mlflow CVSS 3.1CRITICAL 9.8
See all 76 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences