Origin Validation Error Affecting electron package, versions <39.8.9>=40.0.0-alpha.2 <40.9.2>=41.0.0-alpha.1 <41.2.2>=42.0.0-alpha.1 <42.0.0-beta.5
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.
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Test your applications- Snyk IDSNYK-JS-ELECTRON-18563206
- published6 Aug 2026
- disclosed5 Aug 2026
- creditUnknown
Introduced: 5 Aug 2026
NewCVE-2026-70601 (opens in a new tab)How to fix?
Upgrade electron to version 39.8.9, 40.9.2, 41.2.2, 42.0.0-beta.5 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 Origin Validation Error in contextBridge. An attacker can gain access to the isolated preload world and its capabilities by hijacking Function.prototype.bind when Promise-returning functions are exposed to untrusted web content. This may escalate to Node.js access if the renderer is unsandboxed or nodeIntegration is enabled.
Note: This is only exploitable if Promise-returning functions are exposed via contextBridge in windows that load untrusted content.