Next.js Framework 13.4 < 15.5.24 / 16.x < 16.3.3 RCE (Windows)

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

include('compat.inc');

if (description)
{
  script_id(342568);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/03");

  script_cve_id("CVE-2026-75604");

  script_name(english:"Next.js Framework 13.4 < 15.5.24 / 16.x < 16.3.3 RCE (Windows)");

  script_set_attribute(attribute:"synopsis", value:
"The Next.js Framework on the remote Windows host is affected by a remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The Next.js Framework on the remote host is affected by a remote code execution vulnerability:

  - A vulnerability in applications using both the Pages Router and App Router without Cache Components can
    lead to unauthenticated remote code execution when the Next.js server uses a Windows filesystem. Linux and
    macOS are not affected by this issue. There is no known workaround for affected Windows-hosted
    applications. (CVE-2026-75604)

Exploitation additionally requires that the application uses the Pages Router or the App Router without Cache
Components, and that the server runs on a Windows filesystem. Nessus cannot verify the router configuration of
the application, so this finding is reported as a potential vulnerability.

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://nextjs.org/blog/august-2026-security-release");
  # https://github.com/vercel/next.js/security/advisories/GHSA-p293-qw3h-jr36
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?99ed598b");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Next.js Framework version 15.5.24 / 16.3.3 or later.");
  script_set_attribute(attribute:"agent", value:"windows");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-75604");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/08/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/03");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"asset_categories", value:"component");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:vercel:next.js");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

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

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

  script_dependencies("nodejs_modules_win_installed.nbin");
  script_require_keys("Host/nodejs/modules/enumerated");

  exit(0);
}

include('vcf_extras_nodejs.inc');

# handle canary builds, e.g. 16.3.0-canary.60
vcf::add_separator('-');
vcf::add_conversions({'canary':-25});

var app_info = vcf_extras::nodejs_modules::get_app_info(app:'next');

if (empty_or_null(app_info))
  audit(AUDIT_NOT_INST, 'next');

# required: vcf_extras::nodejs_modules::get_app_info() always marks Windows installs with 'Component' (package
# management cannot be determined on Windows), so this call gates reporting behind the "Report potential
# vulnerabilities (components)" preference.
vcf::check_all_backporting(app_info:app_info);

var constraints = [
  {'min_version':'13.4', 'fixed_version':'15.5.24'},
  {'min_version':'16.0', 'fixed_version':'16.3.3'}
];

# The advisory requires the app to use the Pages Router or the App Router without Cache Components, which cannot be
# verified remotely, so the finding is flagged as requiring configuration.
vcf::check_version_and_report(
  app_info:app_info,
  constraints:constraints,
  severity:SECURITY_HOLE,
  missing_config_check:true
);