{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-2651", "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "state": "PUBLISHED", "assignerShortName": "@huntr_ai", "dateReserved": "2026-02-18T01:33:23.276Z", "datePublished": "2026-05-25T06:00:34.002Z", "dateUpdated": "2026-07-15T02:49:04.921Z" }, "containers": { "cna": { "title": "Missing Authorization Validation in mlflow/mlflow", "providerMetadata": { "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "shortName": "@huntr_ai", "dateUpdated": "2026-05-25T06:00:34.002Z" }, "descriptions": [ { "lang": "en", "value": "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": [ { "vendor": "mlflow", "product": "mlflow/mlflow", "versions": [ { "version": "unspecified", "lessThan": "3.10.0", "status": "affected", "versionType": "custom" } ] } ], "references": [ { "url": "https://huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc" }, { "url": "https://github.com/mlflow/mlflow/commit/d7290811d8f3c95366d80109424edc1fb1ad966f" } ], "metrics": [ { "cvssV3_0": { "version": "3.0", "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H", "baseScore": 9, "baseSeverity": "CRITICAL" } } ], "problemTypes": [ { "descriptions": [ { "type": "CWE", "lang": "en", "description": "CWE-862 Missing Authorization", "cweId": "CWE-862" } ] } ], "source": { "advisory": 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