Neo4j < 5.26.21 Information Disclosure Vulnerability (CVE-2026-1622)

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

include('compat.inc');

if (description)
{
  script_id(298972);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/16");

  script_cve_id("CVE-2026-1622");
  script_xref(name:"IAVB", value:"2026-B-0036");

  script_name(english:"Neo4j < 5.26.21 Information Disclosure Vulnerability (CVE-2026-1622)");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server is affected by a Information Disclosure vulnerability");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the version of Neo4j running on the
remote host is a version prior to 5.26.21. It is, therefore, affected by a information disclosure vulnerability
where The obfuscate_literals option in the query logs does not redact error information, exposing unredacted 
data in the query log when a customer writes a query that fails. It can allow a user with legitimate access to 
the local log files to obtain information they are not authorised to see.
    
Note that Nessus has not tested for these issues but has instead
relied only on the application's self-reported version number");
  script_set_attribute(attribute:"see_also", value:"https://neo4j.com/security/CVE-2026-1622/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Neo4j version 5.26.21  or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N");
  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:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_supplemental", value:"CVSS:4.0/AU:N/R:U/V:D/RE:M");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-1622");

  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:"2026/02/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/02/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/02/13");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:neo4j:neo4j");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

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

  script_dependencies("neo4j_detect.nbin");
  script_require_keys("installed_sw/Neo4j", "Settings/ParanoidReport");
  script_require_ports("Services/www", 7474);

  exit(0);
}

include('vcf.inc');
include('http.inc');

var constraints;
var port = get_http_port(default:7474);
var app_info = vcf::get_app_info(app:'Neo4j', port:port, webapp:TRUE);
var ver = app_info['version'];

# regex to match a 2026.x.x format that is on a different release version to a 5.1.2 format
var regex_version = ".*(\d{4}).*";
if (report_paranoia < 2) audit(AUDIT_PARANOID);


if (ver =~ regex_version)
{
    constraints = [{ 'min_version': '2025.01', 'fixed_version' : '2026.01.03' }];
}
else 
{
    constraints = [
      { 'min_version': '4.4', 'fixed_version' : '4.4.48' },
      { 'min_version': '5.0', 'fixed_version' : '5.26.21' }
    ];
}

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_NOTE);