CVE-2026-2651
Critical · 9.0CVSS
9.0
EPSS
0.5%
Published
May 25, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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