External Control of System or Configuration Setting Affecting electron package, versions <39.8.8>=40.0.0-alpha.2 <40.9.1>=41.0.0-alpha.1 <41.2.1>=42.0.0-alpha.1 <42.0.0-beta.3
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-JS-ELECTRON-18565025
- published6 Aug 2026
- disclosed5 Aug 2026
- creditUnknown
Introduced: 5 Aug 2026
NewCVE-2026-70607 (opens in a new tab)How to fix?
Upgrade electron to version 39.8.8, 40.9.1, 41.2.1, 42.0.0-beta.3 or higher.
Overview
electron is a framework which lets you write cross-platform desktop applications using JavaScript, HTML and CSS.
Affected versions of this package are vulnerable to External Control of System or Configuration Setting via the window.open. An attacker can cause the main process to access attacker-controlled file or network paths by supplying malicious window options in the features string.
Note: This is only exploitable if untrusted content can invoke window.open and the application does not override child window options using setWindowOpenHandler or explicitly set overrideBrowserWindowOptions.
Workaround
This vulnerability can be mitigated by returning { action: 'deny' } from setWindowOpenHandler for untrusted content, or by supplying overrideBrowserWindowOptions to explicitly set every window option.