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OpenAdvisories
High · 8.3 CVE-2026-102676 EUVD-2026-89095GHSA-9qh4-3jw8-366w

Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions

Published Sep 29, 2026 · Updated Sep 29, 2026 · Assigned by GitHub_M

Description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5, an Electron <webview> guest could enable nodeIntegrationInWorker for its Web Workers even when the unsandboxed embedder had Node.js integration disabled, allowing untrusted guest content to create a Node-enabled worker with more privilege than the embedder granted. Applications that do not enable the <webview> tag or that keep the embedder sandboxed are not affected. This issue is fixed in versions 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5.

Affected products

VendorProductAffectedFixed
electron electron < 41.10.6, >= 42.0.0-alpha.1, < 42.9.2, >= 43.0.0-alpha.1, < 43.4.1, >= 44.0.0-alpha.1, < 44.0.0-beta.5 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm electron < 41.10.6 41.10.6 GHSA-9qh4-3jw8-366w
npm electron >= 42.0.0-alpha.1, < 42.9.2 42.9.2 GHSA-9qh4-3jw8-366w
npm electron >= 43.0.0-alpha.1, < 43.4.1 43.4.1 GHSA-9qh4-3jw8-366w
npm electron >= 44.0.0-alpha.1, < 44.0.0-beta.5 44.0.0-beta.5 GHSA-9qh4-3jw8-366w

References