CVE-2026-79721

Arbitrary Code Execution via Malicious MLflow Model Artifacts

Published Sep 8, 2026 CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed

Description

Code execution can occur in versions of the MLflow platform running version 0.0.1 or newer, enabling a maliciously crafted model artifact to execute arbitrary code on an end user's system when loaded by the project.

Analysis

Technical impact

A maliciously crafted model artifact can trigger the execution of arbitrary code on an end user's system when loaded by an MLflow project. This flaw allows an attacker to run code with the privileges of the user running the MLflow application, potentially compromising confidentiality, integrity, and availability of the host system.

Affected Systems

The MLflow platform (mlflow:mlflow) versions 0.0.1 and newer are affected by this vulnerability.

Risk and Exploitability

The CVSS score of 8.6 marks this flaw as high severity, and the EPSS score is currently not available. It is not listed in the CISA KEV catalog. The likely attack vector involves an attacker delivering a malicious model artifact to an end user or an automated pipeline that loads untrusted artifacts. If executed, the attacker can control the target system with the same privileges as the MLflow process.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

mlflow

unaffected

Version	Status	Constraints
`0.0.1`	affected	≤ *

No data.

Vendor Product Versions

Mlflow

Version	Status	Scheme	Platform
`[0.0.1,*]`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Upgrade MLflow to a version that incorporates the vendor’s fix for the code‑execution vulnerability.
Limit model artifact loading to trusted internal repositories or internally signed artifacts, preventing the ingestion of untrusted content.
Implement strict validation or sandboxing of model artifacts prior to execution, mitigating potential arbitrary‑code execution.

Generated by OpenCVE AI on September 9, 2026 at 14:20 UTC.

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.474% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://www.hiddenlayer.com/sai-security-advisory/2026-09-mlflow

History

Sep 11, 2026 11:45 PM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Mlflow Mlflow mlflow
Vendors & Products		Mlflow Mlflow mlflow

Sep 9, 2026 2:45 PM Title updated View changes

Type	Values Removed	Values Added
Title		Arbitrary Code Execution via Malicious MLflow Model Artifacts

Sep 8, 2026 7:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Sep 8, 2026 6:30 PM Description updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		Code execution can occur in versions of the MLflow platform running version 0.0.1 or newer, enabling a maliciously crafted model artifact to execute arbitrary code on an end user's system when loaded by the project.
Weaknesses		CWE-829
References		https://www.hiddenlayer.com/sai-security-advisory/2026-09-mlflow
Metrics		cvssV4_0 `{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}`