MongoDB 7.0.x < 7.0.31 / 8.0.x < 8.0.20 / 8.2.x < 8.2.6 / 8.3.0-rc0 Double Free (SERVER-118849)

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

include('compat.inc');

if (description)
{
  script_id(303196);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/30");

  script_cve_id("CVE-2026-4358");
  script_xref(name:"IAVA", value:"2026-A-0253-S");

  script_name(english:"MongoDB 7.0.x < 7.0.31 / 8.0.x < 8.0.20 / 8.2.x < 8.2.6 / 8.3.0-rc0 Double Free (SERVER-118849)");

  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 7.0 prior to 7.0.31, 8.0 prior to 8.0.20, 8.2 prior to 8.2.6, 
and 8.3.0-rc0. It is, therefore, affected by a vulnerability as referenced in the SERVER-118849 advisory.

  - A specially crafted aggregation query with $lookup by an authenticated user with write privileges can 
    cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an 
    in-memory hash table is spilled to disk. (CVE-2026-4358)

  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-118849");
  script_set_attribute(attribute:"solution", value:
"Upgrade to MongoDB version 7.0.31, 8.0.20, 8.2.6, 8.3.0-rc0 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-4358");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/03/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/03/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/03/20");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mongodb:mongodb");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  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' : '7.0', 'fixed_version' : '7.0.31' },
          { 'min_version' : '8.0', 'fixed_version' : '8.0.20' },
          { 'min_version' : '8.2', 'fixed_version' : '8.2.6', 'fixed_display' : '8.2.6 / 8.3.0-rc0' }
      ]
    }
  ]
};

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);