Incorrect Permission Assignment for Critical Resource 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.
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Test your applications- Snyk IDSNYK-JS-ELECTRON-18563336
- published6 Aug 2026
- disclosed5 Aug 2026
- creditUnknown
Introduced: 5 Aug 2026
NewCVE-2026-70612 (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 Incorrect Permission Assignment for Critical Resource via the openExternal. An attacker can cause an OS-registered external application to be launched by sending requests from sandboxed iframes that are not properly restricted.
Note: This is only exploitable if untrusted content is rendered in sandboxed iframes and the openExternal permission is granted (which is the default unless a custom permission handler is installed).
Workaround
This vulnerability can be mitigated by installing a setPermissionRequestHandler that denies the openExternal permission for untrusted content.