CVE-2020-26272
IPC messages delivered to the wrong frame in Electron
Description
### 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 [security@electronjs.org](mailto:security@electronjs.org).
How to fix CVE-2020-26272
To remediate CVE-2020-26272, upgrade the affected package to a fixed version below.
- —upgrade to 9.4.0 or later
Is CVE-2020-26272 being exploited?
Low — EPSS is 1.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 9.4.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N |