MLflow Experiment-scoped Label Schema CRUD API authorization

{
  "id": "78c4e24b62bb09460cd7651fecc7cd458d4e498e61f912c8bf594524f86b7616",
  "url": "https://osv.dev/vulnerability/CVE-2026-13484",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "MLflow Experiment-scoped Label Schema CRUD API authorization",
    "summary": "A vulnerability has been found in MLflow up to 4666cffc7912ea606d592fc38d6a75e2935f65e7. The impacted element is an unknown function of the component Experiment-scoped Label Schema CRUD API. Such manipulation leads to missing authorization. It is possible to launch the attack remotely. A high complexity level is associated with this attack. The exploitability is regarded as difficult. The exploit has been disclosed to the public and may be used. A reply to the GitHub issue explains, that \"[t]he labeling schema PR has not been merged yet. The auth handlers will be added before the release.\"",
    "evidence": "osv:CVE-2026-13484",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-13484",
      "aliases": [
        "BIT-mlflow-2026-13484",
        "CVE-2026-13484"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mlflow/mlflow",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4666cffc7912ea606d592fc38d6a75e2935f65e7"
                },
                {
                  "last_affected": "4666cffc7912ea606d592fc38d6a75e2935f65e7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "4666cffc7912ea606d592fc38d6a75e2935f65e7"
                      },
                      {
                        "last_affected": "4666cffc7912ea606d592fc38d6a75e2935f65e7"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4666cffc7912ea606d592fc38d6a75e2935f65e7"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-13484.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.818465997Z",
      "provider": "osv",
      "references": [
        "https://github.com/mlflow/mlflow/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13484.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-13484",
        "https://vuldb.com/cve/CVE-2026-13484",
        "https://vuldb.com/submit/837658",
        "https://vuldb.com/vuln/374481",
        "https://github.com/mlflow/mlflow/issues/23608",
        "https://github.com/mlflow/mlflow/issues/23608#issuecomment-4560963877",
        "https://vuldb.com/vuln/374481/cti"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-862",
          "CWE-863"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13484.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-13484",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 500952,
  "published_at": "2026-06-28T08:30:09.086+00:00"
}