All vulnerabilities
CVE-2026-102676GHSA-9qh4-3jw8-366w

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

electron electronnpmRuntimes & languages
Open in ThreatlineRecord JSON
CVSS
8.3High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.48%Chance of exploitation activity in the next 30 days, higher than 40% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in41.10.6Also 42.9.2, 43.4.1 and 1 moreGitHub
Published29 Sep 2026Updated 8 Oct 2026CVE List

What fixes it

  • 41.10.6electron, npmGitHubnpm install electron@41.10.6
  • 42.9.2electron, npmGitHubnpm install electron@42.9.2
  • 43.4.1electron, npmGitHubnpm install electron@43.4.1
  • 44.0.0-beta.5electron, npmGitHubnpm install electron@44.0.0-beta.5

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Impact

A <webview> could enable Node.js integration in its Web Workers even when its embedder had Node.js integration disabled, giving guest content more privilege than the embedder allowed.

Apps are only affected if they enable the <webview> tag and the embedder is unsandboxed. Apps that do not use <webview>, or that keep the embedder sandboxed, are not affected.

Workarounds

Remove nodeIntegrationInWorker from the guest preferences in a will-attach-webview handler, or do not enable the <webview> tag when loading untrusted content.

Fixed Versions

  • 44.0.0-beta.5
  • 43.4.1
  • 42.9.2
  • 41.10.6

For more information

If you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org)

Text from GitHub Advisory Database

Affected versions 12

  • electron, npm< 41.10.6GitHub
  • electron, npm>= 42.0.0-alpha.1, < 42.9.2GitHub
  • electron, npm>= 43.0.0-alpha.1, < 43.4.1GitHub
  • electron, npm>= 44.0.0-alpha.1, < 44.0.0-beta.5GitHub
  • electronaffected: < 41.10.6CVE List
  • electronaffected: >= 42.0.0-alpha.1, < 42.9.2CVE List
  • electronaffected: >= 43.0.0-alpha.1, < 43.4.1CVE List
  • electronaffected: >= 44.0.0-alpha.1, < 44.0.0-beta.5CVE List
  • electron, npmfrom first release, fixed in 41.10.6OSV
  • electron, npmfrom 42.0.0-alpha.1, fixed in 42.9.2OSV
  • electron, npmfrom 43.0.0-alpha.1, fixed in 43.4.1OSV
  • electron, npmfrom 44.0.0-alpha.1, fixed in 44.0.0-beta.5OSV

References 10