Origin Validation Error Affecting electron package, versions <39.8.7>=40.0.0-alpha.2 <40.9.1>=41.0.0-alpha.1 <41.2.0>=42.0.0-alpha.1 <42.0.0-beta.1
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-18563334
- published6 Aug 2026
- disclosed5 Aug 2026
- creditUnknown
Introduced: 5 Aug 2026
NewCVE-2026-70599 (opens in a new tab)How to fix?
Upgrade electron to version 39.8.7, 40.9.1, 41.2.0, 42.0.0-beta.1 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 the setPermissionCheckHandler. An attacker can gain unauthorized access to device permissions by embedding a cross-origin iframe and exploiting origin-based permission logic.
Note: This is only exploitable if the application uses origin-based logic in setPermissionCheckHandler and delegates device permissions to cross-origin iframes.
Workaround
This vulnerability can be mitigated by checking details.securityOrigin instead of requestingOrigin for permission decisions, or by not delegating device permissions to untrusted iframes.