Detections
Analytics
CVE-2026-70608
high
Description
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.
References
https://github.com/electron/electron/security/advisories/GHSA-9f4c-93c8-jc8g
https://github.com/electron/electron/releases/tag/v42.0.1
https://github.com/electron/electron/releases/tag/v41.10.3
https://github.com/electron/electron/releases/tag/v39.8.10
https://github.com/electron/electron/pull/51439
https://github.com/electron/electron/pull/51438
https://github.com/electron/electron/pull/51437
https://github.com/electron/electron/commit/68cf8b7d9122260f6b534a69a82c701a56cf159f
https://github.com/electron/electron/commit/57cbe329c4ae8aab5ac5ebdcb588adc9a11de0d3
https://github.com/electron/electron/commit/3ff23c52ab364a0afc6ab5bd7851291d3159de57