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CVE-2026-18657— Executable Resolution from Untrusted Project Directory in Kiro CLI on Windows

Quick assessment

Affected
Amazon Kiro CLI
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Amazon kiro cli是美国Amazon公司的一款命令行工具。 Amazon Kiro CLI 2.10.0之前版本存在权限许可和访问控制问题漏洞，该漏洞源于不受控制的搜索路径元素，可能导致远程未认证攻击者通过恶意构造的项目目录执行任意代码，绕过工作区信任保护。

CVSS 7.8 · High EPSS 0.23% · P13

Affected Version Matrix 1

VendorProduct Version RangeStatus
Amazon Kiro CLI < 2.10.0 affected
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I. Basic Information for CVE-2026-18657

Vulnerability Information
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Vulnerability Title
Executable Resolution from Untrusted Project Directory in Kiro CLI on Windows
Source: CVE Program / CVE List V5
Vulnerability Description
An uncontrolled search path element in Kiro CLI before version 2.10.0 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 starts Kiro CLI in the directory. To remediate this issue, users should upgrade to version 2.10.0 or higher.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对搜索路径元素未加控制
Source: CVE Program / CVE List V5
Vulnerability Title
Amazon Kiro CLI 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Amazon kiro cli是美国Amazon公司的一款命令行工具。 Amazon Kiro CLI 2.10.0之前版本存在权限许可和访问控制问题漏洞，该漏洞源于不受控制的搜索路径元素，可能导致远程未认证攻击者通过恶意构造的项目目录执行任意代码，绕过工作区信任保护。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Amazon Kiro CLI 0 ~ 2.10.0 -

II. Public POCs for CVE-2026-18657

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III. Intelligence Information for CVE-2026-18657

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Vendor Advisories for CVE-2026-18657 (1)

Security Blog Posts for CVE-2026-18657 (1)

IV. Related Vulnerabilities

Same product: Kiro CLI
Same vendor: Amazon
Same weakness: CWE-427

V. Comments for CVE-2026-18657

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