Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-34769— Electron: Renderer command-line switch injection via undocumented commandLineSwitches webPreference

Quick assessment

Affected
electron electron
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.

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之前版本存在安全漏洞，该漏洞源于未记录的commandLineSwitches webPreference允许向渲染器进程命令行追加任意开关，可能导致禁用渲染器沙箱或Web安全控制。

CVSS 7.8 · High EPSS 0.40% · P31

Affected Version Matrix 4

VendorProduct Version RangeStatus
electron electron < 38.8.6 affected
>= 39.0.0-alpha.1, < 39.8.0 affected
>= 40.0.0-alpha.1, < 40.7.0 affected
>= 41.0.0-alpha.1, < 41.0.0-beta.8 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-34769

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Electron: Renderer command-line switch injection via undocumented commandLineSwitches webPreference
Source: CVE Program / CVE List V5
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, an undocumented commandLineSwitches webPreference allowed arbitrary switches to be appended to the renderer process command line. Apps that construct webPreferences by spreading untrusted configuration objects may inadvertently allow an attacker to inject switches that disable renderer sandboxing or web security controls. Apps are only affected if they construct webPreferences from external or untrusted input without an allowlist. Apps that use a fixed, hardcoded webPreferences object 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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
参数注入或修改
Source: CVE Program / CVE List V5
Vulnerability Title
Electron 安全漏洞
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之前版本存在安全漏洞，该漏洞源于未记录的commandLineSwitches webPreference允许向渲染器进程命令行追加任意开关，可能导致禁用渲染器沙箱或Web安全控制。
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
electron electron < 38.8.6 -

II. Public POCs for CVE-2026-34769

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-34769

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-34769 (1)

Same Patch Batch · electron · 2026-04-03 · 13 CVEs total

CVE-2026-34774 8.1 HIGH Electron: Use-after-free in offscreen child window paint callback
CVE-2026-34771 7.5 HIGH Electron: Use-after-free in WebContents fullscreen, pointer-lock, and keyboard-lock permis
CVE-2026-34770 7.0 HIGH Electron: Use-after-free in PowerMonitor on Windows and macOS
CVE-2026-34775 6.8 MEDIUM Electron: nodeIntegrationInWorker not correctly scoped in shared renderer processes
CVE-2026-34767 5.9 MEDIUM Electron: HTTP Response Header Injection in custom protocol handlers and webRequest
CVE-2026-34778 5.9 MEDIUM Electron: Service worker can spoof executeJavaScript IPC replies
CVE-2026-34772 5.8 MEDIUM Electron: Use-after-free in download save dialog callback
CVE-2026-34777 5.4 MEDIUM Electron: Incorrect origin passed to permission request handler for iframe requests
CVE-2026-34776 5.3 MEDIUM Electron: Out-of-bounds read in second-instance IPC on macOS and Linux
CVE-2026-34773 4.7 MEDIUM Electron: Registry key path injection in app.setAsDefaultProtocolClient on Windows
CVE-2026-34768 3.9 LOW Electron: Unquoted executable path in app.setLoginItemSettings on Windows
CVE-2026-34766 3.3 LOW Electron: USB device selection not validated against filtered device list

IV. Related Vulnerabilities

Same product: electron
Same vendor: electron
Same weakness: CWE-88

V. Comments for CVE-2026-34769

No comments yet

Leave a comment