{"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":"2026-06-29T12:34:17.434Z"},"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":"65beb119-d3e0-4e03-af2f-fa98f78f83dc","discovery":"EXTERNAL"}},"adp":[{"references":[{"url":"https://huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-26T00:00:00+00:00","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-2651"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-27T03:55:35.963Z"}},{"affected":[{"cpes":["cpe:/a:redhat:openshift_ai"],"defaultStatus":"unaffected","product":"Red Hat OpenShift AI (RHOAI)","vendor":"Red Hat"}],"datePublic":"2026-05-25T06:00:34.002Z","descriptions":[{"lang":"en","value":"A flaw was found in MLflow when the `--serve-artifacts` mode is enabled. A remote attacker can exploit this vulnerability due to insufficient resource-level permission checks for multipart upload (MPU) endpoints. This allows the attacker to overwrite artifacts belonging to other users, which can lead to model supply chain poisoning and potentially arbitrary code execution when compromised models are loaded."}],"metrics":[{"other":{"content":{"namespace":"https://access.redhat.com/security/updates/classification/","value":"Critical"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1220","description":"Insufficient Granularity of Access Control","lang":"en","type":"CWE"}]}],"references":[{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-2651"},{"name":"RHBZ#2481117","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2481117"},{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2651.json"}],"timeline":[{"lang":"en","time":"2026-05-25T07:00:55.073Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-05-25T06:00:34.002Z","value":"Made public."}],"title":"github.com/mlflow/mlflow: MLflow: Arbitrary code execution via unauthorized multipart upload access","x_adpType":"supplier","x_generator":{"engine":"sadp-cli 1.0.0"},"providerMetadata":{"orgId":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","shortName":"redhat-SADP","dateUpdated":"2026-06-29T12:34:17.434Z"}}]}}