CVE-2026-34766
Description
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.
How to fix
- electronjs electron38.8.6, 39.8.0, 40.7.0 or later
- electron38.8.6, 39.8.0, 40.7.0, 41.0.0-beta.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| electronjs electron | v < 38.8.6, 39.0.0 ≤ v < 39.8.0, 40.0.0 ≤ v < 40.7.0, 41.0.0 | 38.8.6, 39.8.0, 40.7.0 |
| electronnpm | v < 38.8.6, 39.0.0-alpha.1 ≤ v < 39.8.0, 40.0.0-alpha.1 ≤ v < 40.7.0, 41.0.0-alpha.1 ≤ v < 41.0.0-beta.8 | 38.8.6, 39.8.0, 40.7.0, 41.0.0-beta.8 |
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Attack Surface Management
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