Detections
Analytics
CVE-2026-70612
medium
Description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, requests to open external protocol URLs from web content did not take iframe sandbox restrictions into account, so a sandboxed iframe could cause an OS-registered external application to be launched. The frame sandbox state was also not made available to the app permission handlers, affecting apps that render untrusted content in sandboxed iframes and grant the openExternal permission by default when no setPermissionRequestHandler is installed. This issue is fixed in 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3.
References
https://github.com/electron/electron/security/advisories/GHSA-p2rr-rvmm-c5fp
https://github.com/electron/electron/releases/tag/v42.0.0-beta.3
https://github.com/electron/electron/releases/tag/v41.2.1
https://github.com/electron/electron/releases/tag/v40.9.0
https://github.com/electron/electron/releases/tag/v39.8.8
https://github.com/electron/electron/pull/50964
https://github.com/electron/electron/pull/50963
https://github.com/electron/electron/pull/50962
https://github.com/electron/electron/pull/50961
https://github.com/electron/electron/commit/c39e3d5687d57434c8d5fe814c5152efd2f631c3
https://github.com/electron/electron/commit/477dcf7afc6550715f9ec5e6f39ee38e5dd7bf39
https://github.com/electron/electron/commit/2764e4c35168855f614876051823db4f58a3714a
https://github.com/electron/electron/commit/08b9d0a220e267d1a2402a44bdd01a2e9aa320b5