Bug 2455004 (CVE-2026-34769) - CVE-2026-34769 Electron: Electron: Arbitrary code execution and security bypass via undocumented command-line switches
Summary: CVE-2026-34769 Electron: Electron: Arbitrary code execution and security bypa...
Keywords:
Status: NEW
Alias: CVE-2026-34769
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2455452 2455453
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-04 00:01 UTC by OSIDB Bzimport
Modified: 2026-04-06 16:53 UTC (History)
0 users

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Description OSIDB Bzimport 2026-04-04 00:01:47 UTC 
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.
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