IPC messages delivered to the wrong frame in Electron

Impact

IPC messages sent from the main process to a subframe in the renderer process, through webContents.sendToFrame, event.reply or when using the remote module, can in some cases be delivered to the wrong frame.

If your app does ANY of the following, then it is impacted by this issue:

• Uses remote
• Calls webContents.sendToFrame
• Calls event.reply in an IPC message handler

Patches

This has been fixed in the following versions:

• 9.4.0
• 10.2.0
• 11.1.0
• 12.0.0-beta.9

Workarounds

There are no workarounds for this issue.

For more information

If you have any questions or comments about this advisory, email us at [email protected].