CVE-2026-70599

Published: Aug 5, 2026Modified: Oct 8, 2026

5.9

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability: 2.2 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

Description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1, serial-port and media permission checks made from an iframe passed the top-level frame origin to session.setPermissionCheckHandler instead of the requesting iframe origin. Origin-based handler logic could grant a cross-origin iframe device access intended only for the top-level origin. This issue is fixed in 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1.

Affected (11)

Products: Electronjs: Electron

Electronjs

1 product

Electron

Configuration A

11 vulnerable

Vulnerable Software	Affected Versions
Electronjs Electron	version < 39.8.7
Electronjs Electron	40.0.0 ≤ version < 40.9.0
Electronjs Electron	41.0.0 ≤ version < 41.2.1
Electronjs Electron	Version 42.0.0 alpha1
Electronjs Electron	Version 42.0.0 alpha2
Electronjs Electron	Version 42.0.0 alpha3
Electronjs Electron	Version 42.0.0 alpha4
Electronjs Electron	Version 42.0.0 alpha5
Electronjs Electron	Version 42.0.0 alpha6
Electronjs Electron	Version 42.0.0 beta1
Electronjs Electron	Version 42.0.0 beta2

Related CWEs

CWE-346

Origin Validation Error

The product does not properly verify that the source of data or communication is valid.

References (2)

https://github.com/electron/electron/commit/0cbdf2f0375466d701aa393c92e0ec29eb89ea6c

Source: security-advisories@github.com

Patch

https://github.com/electron/electron/security/advisories/GHSA-9pf5-hg6p-4pwp

Source: security-advisories@github.com

Vendor Advisory

Timeline

No history available yet.