MongoDB 4.4.x < 4.4.31 / 5.0.x < 5.0.34 / 6.0.x < 6.0.29 / 7.0.x < 7.0.37 / 8.0.x < 8.0.26 / 8.2.x < 8.2.11 / 8.3.x < 8.3.4 Use-After-Free (CVE-2026-11933)

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

include('compat.inc');

if (description)
{
  script_id(321186);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/26");

  script_cve_id("CVE-2026-11933");
  script_xref(name:"IAVA", value:"2026-A-0606");

  script_name(english:"MongoDB 4.4.x < 4.4.31 / 5.0.x < 5.0.34 / 6.0.x < 6.0.29 / 7.0.x < 7.0.37 / 8.0.x < 8.0.26 / 8.2.x < 8.2.11 / 8.3.x < 8.3.4 Use-After-Free (CVE-2026-11933)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of MongoDB installed on the remote host is 4.4.x prior to 4.4.31, 5.0.x prior to 5.0.34, 6.0.x prior to
6.0.29, 7.0.x prior to 7.0.37, 8.0.x prior to 8.0.26, 8.2.x prior to 8.2.11, or 8.3.x prior to 8.3.4. It is,
therefore, affected by a use-after-free vulnerability:

  - A use-after-free vulnerability exists in the server-side JavaScript engine when converting BSON documents to
    JavaScript arrays. An authenticated user with read privileges who is able to run server-side JavaScript (via
    $where or $function) can cause the server to access memory that has already been freed, potentially resulting
    in disclosure of information or denial of service. (CVE-2026-11933)

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://jira.mongodb.org/browse/SERVER-128125");
  script_set_attribute(attribute:"solution", value:
"Upgrade to MongoDB version 4.4.31 / 5.0.34 / 6.0.29 / 7.0.37 / 8.0.26 / 8.2.11 / 8.3.4 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-11933");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/06/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/16");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mongodb:mongodb");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Databases");

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

  script_dependencies("mongodb_win_installed.nbin", "mongodb_nix_installed.nbin", "mongodb_macos_installed.nbin", "mongodb_detect.nasl");
  script_require_keys("installed_sw/MongoDB");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'MongoDB', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints' : [
        {'min_version':'4.4.0', 'fixed_version':'4.4.31'},
        {'min_version':'5.0.0', 'fixed_version':'5.0.34'},
        {'min_version':'6.0.0', 'fixed_version':'6.0.29'},
        {'min_version':'7.0.0', 'fixed_version':'7.0.37'},
        {'min_version':'8.0.0', 'fixed_version':'8.0.26'},
        {'min_version':'8.2.0', 'fixed_version':'8.2.11'},
        {'min_version':'8.3.0', 'fixed_version':'8.3.4'}
      ]
    }
  ]
};

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