MLflow < 3.15.0 SSRF (CVE-2026-64849)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(338765);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/21");

  script_cve_id("CVE-2026-64849");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2026/09/09");

  script_name(english:"MLflow < 3.15.0 SSRF (CVE-2026-64849)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by a server-side request forgery vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of MLflow installed on the remote host is prior to 3.15.0. It is, therefore,
affected by a server-side request forgery vulnerability:

  - The unauthenticated POST /api/2.0/mlflow/webhooks/{id}/test endpoint calls
    _validate_webhook_url() only for the original URL while the webhook delivery 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. (CVE-2026-64849)

Note that Nessus has not tested for this issue but has instead relied only on the application's
self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://github.com/advisories/GHSA-7gwp-5pfp-969j");
  script_set_attribute(attribute:"solution", value:
"Upgrade to MLflow version 3.15.0 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:P/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-64849");

  script_cwe_id(918);

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/08/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/21");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:lfprojects:mlflow");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Artificial Intelligence");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("mlflow_detect.nbin", "python_mlflow_detect.nbin");
  script_require_keys("installed_sw/MLflow");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'MLflow', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {'fixed_version': '3.15.0'}
      ]
    }
  ]
};

var result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_HOLE);
vdf::handle_check_and_report_errors(vdf_result:result);