CVE-2026-34766 LOW

CVE-2026-34766: Electron: USB device selection not validated against filtered device list

Vendor Electron
Product electron
Weakness CWE-862 · Missing authorization
Published April 3, 2026
Last update April 6, 2026

CVSS base score

3.3/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, the select-usb-device event callback did not validate the chosen device ID against the filtered list that was presented to the handler. An app whose handler could be influenced to select a device ID outside the filtered set would grant access to a device that did not match the renderer's requested filters or was listed in exclusionFilters. The WebUSB security blocklist remained enforced regardless, so security-sensitive devices on the blocklist were not affected. The practical impact is limited to apps with unusual device-selection logic. This issue has been patched in versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8.

Key dates

02Disclosure timeline

April 3, 2026 CVE published
April 6, 2026 Record updated