Read the docs
TI-2026-07176 Aliases CVE-2026-8147GHSA-2cm6-r77w-6g96

Authorization Bypass in mlflow/mlflow

Priority HIGH 70CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-284.

Summary

In MLflow versions prior to 3.14.0, when running with authentication enabled, the trace API endpoints lack proper authorization validators. This allows any authenticated user to bypass experiment-level authorization controls on all trace operations, including reading, deleting, and modifying traces on experiments they do not have permission to access. The issue arises from the `_before_request` handler, which does not register authorization validators for trace endpoints, resulting in requests proceeding without validation. This vulnerability can expose sensitive data, destroy audit logs, and allow unauthorized modifications.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00548 46th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed mlflow/mlflow (mlflow): 3.14.0mlflow (PyPI): 3.13.0rc0

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 3.14.03.14.0Patch availableCNA
—mlflow (PyPI)2.14.0rc0 to before 3.13.0rc03.13.0rc0Patch availableGHSA-2cm6-r77w-6g96
  • mlflow/mlflow VendorMLflow Affected before 3.14.0 Fixed in 3.14.0 Patch available CNA
  • mlflow (PyPI) Vendor— Affected 2.14.0rc0 to before 3.13.0rc0 Fixed in 3.13.0rc0 Patch available GHSA-2cm6-r77w-6g96

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:lfprojects:mlflow:*:*:*:*:*:*:*:*before 3.14.0VulnerableMLflow
  • cpe:2.3:a:lfprojects:mlflow:*:*:*:*:*:*:*:* Versions before 3.14.0 Vulnerable ·MLflow

Remediation

  • Fix · CNA mlflow/mlflow (mlflow) Fixed in 3.14.0
  • Fix · GHSA-2cm6-r77w-6g96 mlflow (PyPI) Fixed in 3.13.0rc0 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat OpenShift AI (RHOAI)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-8147
  2. 2026-10-03 Alias added: GHSA-2cm6-r77w-6g96

References

Exploit 1

Patch 1

Advisory 1

Other 3

  • 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