Disclosure summary
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.10, 41.10.3, and 42.0.1, a sandboxed iframe without the allow-popups keyword could still open a new window or trigger setWindowOpenHandler with no user interaction because new-window navigations taking the OpenURL path did not apply the iframe sandbox popup restriction. Apps that embed untrusted content in sandboxed iframes and rely on the absence of allow-popups to prevent window creation are affected, while apps that deny window creation in setWindowOpenHandler or do not embed untrusted content in sandboxed iframes are not affected. This issue is fixed in 39.8.10, 41.10.3, and 42.0.1.
Source-reported weakness categories
CWE-693, CWE-1021
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2026-70608
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| electronjs | electron | * {"versionStartIncluding":"42.0.0","versionEndExcluding":"42.0.1"} |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Patch
- github.com — Patch
- github.com — Patch
- github.com — Issue Tracking, Patch
- github.com — Issue Tracking, Patch
- github.com — Issue Tracking, Patch
- github.com — Release Notes
- github.com — Release Notes
- github.com — Release Notes
- github.com — Vendor Advisory
PUBLISHED 2026-08-05T14:17:15-04:00
MODIFIED 2026-10-08T09:53:39-04:00
INGESTED 2026-10-10T20:25:12-04:00