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Vulnerability · Published Sep 29, 2026 · Assigned by GitHub_M

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

High 8.3

In plain English

A high-severity privilege mismanagement in electron from electron. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.3High
Exploit odds (30 days)0.5%top 58.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
npmelectron41.10.6GHSA-9qh4-3jw8-366w
npmelectron42.9.2GHSA-9qh4-3jw8-366w
npmelectron43.4.1GHSA-9qh4-3jw8-366w
npmelectron44.0.0-beta.5GHSA-9qh4-3jw8-366w

Affected products (as reported)

VendorProductVersions
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

Weakness: CWE-269, CWE-1188 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

References