Electron: nodeIntegrationInWorker not correctly scoped in shared renderer processes

緊急 9.8CVE-2026-34775 · GHSA-xwr5-m59h-vwqr · 04/04/2026 公開 · 24/07/2026 更新

要点

CVE-2026-34775 は electron (electronjs), electron に影響する深刻度「緊急」 (CVSS 9.8) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.29%（全脆弱性の 22.0% より高い）。
対処：39.8.4, 40.8.4, 38.8.6, 41.0.0 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, < 39.8.4≥ 40.0.0, < 40.8.4< 38.8.6`	`39.8.440.8.438.8.6`
electron npm	`≥ 39.0.0-alpha.1, < 39.8.4≥ 40.0.0-alpha.1, < 40.8.4≥ 41.0.0-alpha.1, < 41.0.0< 38.8.6`	`39.8.440.8.441.0.038.8.6`

概要

Impact

The nodeIntegrationInWorker webPreference was not correctly scoped in all configurations. In certain process-sharing scenarios, workers spawned in frames configured with nodeIntegrationInWorker: false could still receive Node.js integration.

Apps are only affected if they enable nodeIntegrationInWorker. Apps that do not use nodeIntegrationInWorker are not affected.

Workarounds

Avoid enabling nodeIntegrationInWorker in apps that also open child windows or embed content with differing webPreferences.

Fixed Versions

41.0.0
40.8.4
39.8.4
38.8.6

For more information

If there are any questions or comments about this advisory, please email [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, 39.8.4, 40.8.4, and 41.0.0, the nodeIntegrationInWorker webPreference was not correctly scoped in all configurations. In certain process-sharing scenarios, workers spawned in frames configured with nodeIntegrationInWorker: false could still receive Node.js integration. Apps are only affected if they enable nodeIntegrationInWorker. Apps that do not use nodeIntegrationInWorker are not affected. This issue has been patched in versions 38.8.6, 39.8.4, 40.8.4, and 41.0.0.