CVE-2026-34775

Electron: nodeIntegrationInWorker not correctly scoped in shared renderer processes

State: Published
Severity: 6.8 Medium
Published: Apr 3, 2026
Updated: Apr 8, 2026
Reserved: Mar 30, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	6.8 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N	GitHub_M

Weaknesses

CWE-653 Improper Isolation or Compartmentalization

Affected Products

Product	Versions
electronelectron	< 38.8.6Affected >= 39.0.0-alpha.1, < 39.8.4Affected >= 40.0.0-alpha.1, < 40.8.4Affected >= 41.0.0-alpha.1, < 41.0.0Affected

References

https://github.com/electron/electron/security/advisories/GHSA-xwr5-m59h-vwqr

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