Review reviewCritical

CVE-2026-2651

mlflow mlflow/mlflow, Red Hat OpenShift AI (RHOAI), mlflow

A vulnerability in MLflow versions <=3.10.1.dev0 allows unauthorized access to multipart upload (MPU) endpoints when the `--serve-artifacts` mode is enabled. The authorization logic does not enforce resource-level permission checks for `/mlflow-artifacts/mpu/*` endpoints, enabling attackers to overwrite artifacts belonging to other users. This can lead to unauthorized cross-user writes, model supply chain poisoning, and arbitrary code execution when compromised models are loaded. The issue is resolved in version 3.10.0.

CVSS: 9
EPSS: 0.34%
CISA KEV: Not listed
Published: 2026.05.25

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.34%

Technical severityCVSS 9

Vulnerability overview

Affected product and versions

Product: mlflow mlflow/mlflow, Red Hat OpenShift AI (RHOAI), mlflow
Affected versions: >= unspecified < 3.10.0, <= 3.10.1
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that mlflow mlflow/mlflow, Red Hat OpenShift AI (RHOAI), mlflow and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CWE: CWE-1220, CWE-862