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Amazon Kiro IDE 1.0.x < 1.0.228 Uncontrolled Search Path Element (Windows)

🗓️ 07 Aug 2026 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com👁 2 Views

Uncontrolled search path in Amazon Kiro IDE before 1.0.228 on Windows enables remote code execution via malicious project directory.

Related
Refs
Code
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-18656
4 Aug 202619:35
attackerkb
circl
Circl
CVE-2026-18656
6 Aug 202612:15
circl
cve
CVE
CVE-2026-18656
4 Aug 202619:35
cve
cvelist
Cvelist
CVE-2026-18656 Executable Resolution from Untrusted Project Directory in Kiro IDE on Windows
4 Aug 202619:35
cvelist
euvd
EUVD
EUVD-2026-52911
4 Aug 202619:35
euvd
nvd
NVD
CVE-2026-18656
4 Aug 202620:16
nvd
vulnrichment
Vulnrichment
CVE-2026-18656 Executable Resolution from Untrusted Project Directory in Kiro IDE on Windows
4 Aug 202619:35
vulnrichment
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(333336);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/07");

  script_cve_id("CVE-2026-18656");
  script_xref(name:"IAVB", value:"2026-B-0217");

  script_name(english:"Amazon Kiro IDE 1.0.x < 1.0.228 Uncontrolled Search Path Element (Windows)");

  script_set_attribute(attribute:"synopsis", value:
"An IDE installed on the remote Windows host is affected by a code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Amazon Kiro IDE installed on the remote Windows host is 1.0.x prior to 1.0.228. It is, therefore,
affected by a vulnerability.

  - An uncontrolled search path element in Kiro IDE before version 1.0.228 on Windows might allow a remote
    unauthenticated actor to execute arbitrary code via a maliciously crafted project directory containing an
    executable that bypasses workspace trust protections when a local user opens the directory.
    (CVE-2026-18656)

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://aws.amazon.com/security/security-bulletins/2026-074-aws/");
  script_set_attribute(attribute:"see_also", value:"https://kiro.dev/changelog/ide/1-0/#patch-1-0-228");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Amazon Kiro IDE version 1.0.228 or later.");
  script_set_attribute(attribute:"agent", value:"windows");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-18656");
  script_set_attribute(attribute:"stig_severity", value:"I");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/08/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:amazon:kiro");
  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("amazon_kiro_win_installed.nbin");
  script_require_keys("installed_sw/Amazon Kiro");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'requires': [
    {'scope': 'target', 'match': {'os': 'windows'}}
  ],
  'checks': [
    {
      'product': {'name': 'Amazon Kiro', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {'min_version': '1.0.0', 'fixed_version': '1.0.228'}
      ]
    }
  ]
};

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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07 Aug 2026 00:00Current
6Medium risk
Vulners AI Score6
CVSS 3.17.8
CVSS 48.5
EPSS0.00159
SSVC
2