LLMHigh
CVE-2026-2651: A vulnerability in MLflow versions <=3.10.1.dev0 allows unauthorized access to multipart upload (MPU…
- Occurred
- May 25, 2026
- Published
- May 25, 2026
- Source
- NVD CVE
Summary
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.
Tags
- CVE
- CVE-2026-2651
- cvss:CRITICAL
Classification
Category confidence: 90%
Severity confidence: 85%
Rationale: MLflow vulnerability enables model supply chain poisoning and arbitrary code execution in ML systems.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8