{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:lfprojects:mlflow:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.15.0"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "d0f31520ec4af7c4deaa9a8e7904c442fb1b310d"
            },
            {
              "fixed": "ba949522477cbd5915aa55d29b0cfad7d5ddf939"
            }
          ],
          "repo": "https://github.com/mlflow/mlflow",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-7gwp-5pfp-969j"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64849.json"
  },
  "details": "MLflow is an open source AI engineering platform for agents, large language models, and machine learning models. Prior to 3.15.0, the unauthenticated POST /api/2.0/mlflow/webhooks/{id}/test endpoint calls _validate_webhook_url() in mlflow/utils/validation.py only for the original URL while mlflow/webhooks/delivery.py follows redirects and re-resolves the hostname without pinning the validated address, allowing attackers to reach internal or cloud metadata services and receive response_status and response_body. This issue is fixed in version 3.15.0.",
  "id": "CVE-2026-64849",
  "modified": "2026-08-22T03:30:51.075126854Z",
  "published": "2026-08-17T21:16:10.612Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mlflow/mlflow/releases/tag/v3.15.0"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-64849"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64849.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/mlflow/mlflow/security/advisories/GHSA-7gwp-5pfp-969j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64849"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mlflow/mlflow/issues/24179"
    },
    {
      "type": "FIX",
      "url": "https://github.com/mlflow/mlflow/commit/ba949522477cbd5915aa55d29b0cfad7d5ddf939"
    },
    {
      "type": "FIX",
      "url": "https://github.com/mlflow/mlflow/pull/24258"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "MLflow: Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed via unvalidated HTTP redirects (and DNS rebinding)"
}