CVE-2026-5429— Kiro IDE Webview Cross-Site Scripting via Workspace Color Theme
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I. Basic Information for CVE-2026-5429
Vulnerability Information
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Vulnerability Title
Kiro IDE Webview Cross-Site Scripting via Workspace Color Theme
Source: NVD (National Vulnerability Database)
Vulnerability Description
Unsanitized input during web page generation in the Kiro Agent webview in Kiro IDE before version 0.8.140 allows a remote unauthenticated threat actor to execute arbitrary code via a potentially damaging crafted color theme name when a local user opens the workspace. This issue requires the user to trust the workspace when prompted. To remediate this issue, users should upgrade to version 0.8.140.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Kiro IDE 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kiro IDE是Kiro开源的一款集成开发环境。 Kiro IDE 0.8.140之前版本存在安全漏洞，该漏洞源于Kiro Agent webview在网页生成期间存在未清理的输入，可能导致远程未经验证的威胁参与者通过特制颜色主题名称执行任意代码。
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
II. Public POCs for CVE-2026-5429
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- 2026-012-AWSvendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-5429
IV. Related Vulnerabilities
Same vendor: AWS
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Out-of-Bounds Read in Router Advertisement Option Parser in - CVE-2026-7424
Integer Underflow in DHCPv6 Sub-Option Parser in FreeRTOS-Pl - CVE-2026-7423
Integer Underflow in ICMP Echo Reply Processing in FreeRTOS-
Same weakness: CWE-79
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V. Comments for CVE-2026-5429
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