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I. Basic Information for CVE-2026-34771
Vulnerability Information

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Vulnerability Title
Electron: Use-after-free in WebContents fullscreen, pointer-lock, and keyboard-lock permission callbacks
Source: NVD (National Vulnerability Database)
Vulnerability Description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, apps that register an asynchronous session.setPermissionRequestHandler() may be vulnerable to a use-after-free when handling fullscreen, pointer-lock, or keyboard-lock permission requests. If the requesting frame navigates or the window closes while the permission handler is pending, invoking the stored callback dereferences freed memory, which may lead to a crash or memory corruption. Apps that do not set a permission request handler, or whose handler responds synchronously, are not affected. This issue has been patched in versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
释放后使用
Source: NVD (National Vulnerability Database)
Vulnerability Title
Electron 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Electron是Electron开源的一个用户编写跨平台桌面应用的 JavaScript 框架。该框架基于 nodejs 和 Chromium 可以使用HTML,CSS实现跨平台桌面应用的编写。 Electron 38.8.6之前版本、39.8.0之前版本、40.7.0之前版本和41.0.0-beta.8之前版本存在资源管理错误漏洞,该漏洞源于注册异步session.setPermissionRequestHandler时处理全屏、指针锁定或键盘锁定权限请求存在释放后重用问题,可能导致崩溃或内存损坏。
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
VendorProductAffected VersionsCPESubscribe
electronelectron < 38.8.6 -
II. Public POCs for CVE-2026-34771
#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
kimi-k2.5 · 9836 chars
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III. Intelligence Information for CVE-2026-34771
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IV. Related Vulnerabilities
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