VULNERABILITY INTELLIGENCE

CVE-2026-2651

CVSS score9 CRITICAL
EPSS probability0.34%
CISA KEVNot currently listed
Published2026-05-25
Last modified2026-07-21
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Description

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.

Weakness classification

  • security@huntr.dev: CWE-862
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-1220

Primary references