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Node.js 24.x < 24.22.1 / 26.x < 26.12.1 TLS Certificate Hostname Bypass

🗓️ 22 Oct 2026 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com👁 1 Views

TLS certificate hostname bypass in Node.js when using fullwidth digits for IP addresses.

Related
Refs
Code
ReporterTitlePublishedViews
Family
alpinelinux
AlpineLinux
CVE-2026-105483
21 Oct 202600:00
–alpinelinux
circl
Circl
CVE-2026-105483
21 Oct 202606:23
–circl
cve
CVE
CVE-2026-105483
21 Oct 202600:00
–cve
debiancve
Debian CVE
CVE-2026-105483
21 Oct 202600:00
–debiancve
mend
Mend
CVE-2026-105483
21 Oct 202600:00
–mend
nodejsblog
Node JS Blog
Wednesday, October 21, 2026 Security Releases
21 Oct 202600:00
–nodejsblog
osv_debian
osv_debian
DEBIAN-CVE-2026-105483
22 Oct 202607:47
–osv_debian
osv_ubuntu
osv_ubuntu
UBUNTU-CVE-2026-105483
23 Oct 202600:00
–osv_ubuntu
patchstack
Patchstack
Node.js < 24.22.1, < 26.12.1 - Improper Certificate Validation via Fullwidth-Digit IP Hostnames (checkServerIdentity bypass)
21 Oct 202617:09
–patchstack
ptsecurity
Positive Technologies
PT-2026-120548
21 Oct 202600:00
–ptsecurity
Rows per page
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(370489);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/22");

  script_cve_id("CVE-2026-105483");

  script_name(english:"Node.js 24.x < 24.22.1 / 26.x < 26.12.1 TLS Certificate Hostname Bypass");

  script_set_attribute(attribute:"synopsis", value:
"Node.js - JavaScript run-time environment is affected by a TLS certificate hostname bypass vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Node.js installed on the remote host is 24.x prior to 24.22.1 or 26.x prior to 26.12.1. It is,
therefore, affected by a TLS certificate hostname bypass vulnerability as referenced in the Wednesday, October 21, 2026
Security Releases advisory.

  - TLS certificate hostname verification can be bypassed when the IP address is written using fullwidth
    digits. (CVE-2026-105483)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://nodejs.org/en/blog/vulnerability/october-2026-security-releases/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?43909333");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Node.js version 24.22.1 / 26.12.1 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-105483");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/10/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/10/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/22");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:nodejs:node.js");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

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

  script_dependencies("nodejs_win_installed.nbin", "nodejs_installed_nix.nbin", "macosx_nodejs_installed.nbin");
  script_require_keys("installed_sw/Node.js");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'Node.js', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        { 'min_version' : '24.0.0', 'fixed_version' : '24.22.1', 'min_granularity' : 3 },
        { 'min_version' : '26.0.0', 'fixed_version' : '26.12.1', 'min_granularity' : 3 }
      ]
    }
  ]
};

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

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22 Oct 2026 00:00Current
6.2Medium risk
Vulners AI Score6.2
1