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CVE-2026-102676Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions

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.

9.8 CRITICALEPSS 0.47%Not in KEVNVD: Analyzed

OverviewAffected ProductsReferences
NVD CVE.org

Overview

Severity

ScoreSeverityVersionVector String
9.8CRITICAL3.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.3HIGH3.1GitHub_M (CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Details

CVE ID
CVE-2026-102676
Status
Analyzed
Assigner (CNA)
GitHub_M
Published
Sep 29, 2026
Last modified
2026-10-15 13:47 UTC
Weaknesses
  • CWE-269 · Improper Privilege Management
  • CWE-1188 · Insecure Default Initialization of Resource

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 08:27 UTC.