Electron: USB device selection not validated against filtered device list

中 5.4CVE-2026-34766 · GHSA-9899-m83m-qhpj · 04/04/2026 公開 · 24/07/2026 更新

要点

CVE-2026-34766 は electron (electronjs), electron に影響する深刻度「中」 (CVSS 5.4) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.17%（全脆弱性の 5.7% より高い）。
対処：39.8.0, 40.7.0, 38.8.6, 41.0.0-beta.8 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
electron electronjs	`= 41.0.0≥ 39.0.0, < 39.8.0≥ 40.0.0, < 40.7.0< 38.8.6`	`39.8.040.7.038.8.6`
electron npm	`≥ 39.0.0-alpha.1, < 39.8.0≥ 40.0.0-alpha.1, < 40.7.0≥ 41.0.0-alpha.1, < 41.0.0-beta.8< 38.8.6`	`39.8.040.7.041.0.0-beta.838.8.6`

概要

Impact

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.

Workarounds

There are no app side workarounds, you must update to a patched version of Electron.

Fixed Versions

41.0.0-beta.8
40.7.0
39.8.0
38.8.6

For more information

If there are any questions or comments about this advisory, send an email to [email protected]

NVD の説明

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.