MLflow: CreateModelVersion source validation does not check READ permission on referenced run_id

{
  "id": "00fd8028fe4744571100bf4821bca81bfc0e57ab03d3f68f6a34152722f977b6",
  "url": "https://osv.dev/vulnerability/CVE-2026-69148",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "MLflow: CreateModelVersion source validation does not check READ permission on referenced run_id",
    "summary": "MLflow is an open source AI engineering platform for agents, large language models, and machine learning models. Prior to 3.15.0, CreateModelVersion accepts a run_id or model_id after _validate_source_run() or _validate_source_model() in mlflow/server/handlers.py verifies only path containment, allowing authenticated users to create a model version that references another user's artifact directory and read files through GET /model-versions/get-artifact without the required READ permission. This issue is fixed in version 3.15.0.",
    "evidence": "osv:CVE-2026-69148",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-69148",
      "aliases": [
        "BIT-mlflow-2026-69148",
        "CVE-2026-69148",
        "GHSA-gqch-g4w5-7qcw"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mlflow/mlflow",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "d0f31520ec4af7c4deaa9a8e7904c442fb1b310d"
                },
                {
                  "fixed": "4bb7474771c3be808cd9e129defef9305f2869be"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.15.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "4bb7474771c3be808cd9e129defef9305f2869be"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d0f31520ec4af7c4deaa9a8e7904c442fb1b310d"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v3.15.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "ts/v0.3.0-rc.0",
            "ts/v0.2.0",
            "ts/v0.2.0-rc.2",
            "ts/v0.2.0-rc.1",
            "model-catalog/latest",
            "nightly",
            "v3.0.0",
            "v2.2.0",
            "v1.7.0",
            "1.0.0",
            "v0.8.1",
            "v0.8.0",
            "v0.7",
            "v0.6.0",
            "v0.5.0",
            "v0.4.2",
            "v0.4.1",
            "v0.4.0",
            "v0.3.0",
            "v0.2.1",
            "v0.2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-69148.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.828321968Z",
      "provider": "osv",
      "references": [
        "https://github.com/mlflow/mlflow/releases/tag/v3.15.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/69xxx/CVE-2026-69148.json",
        "https://github.com/mlflow/mlflow/security/advisories/GHSA-gqch-g4w5-7qcw",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-69148",
        "https://github.com/mlflow/mlflow/commit/4bb7474771c3be808cd9e129defef9305f2869be",
        "https://github.com/mlflow/mlflow/pull/24293"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-862"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/69xxx/CVE-2026-69148.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-69148",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 519369,
  "published_at": "2026-08-17T21:21:10.279+00:00"
}