{"schemaVersion":3,"id":"CVE-2026-2651","aliases":["GHSA-8c7q-86fq-vvmh","BIT-mlflow-2026-2651","PYSEC-2026-2220","CGA-c2w3-2xxg-6232"],"status":"published","duplicateOf":null,"title":null,"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. 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