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CVE-2026-102676 — Vulnerability in electron — CVE Details

HIGH

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

Published September 29, 2026Updated September 29, 2026Source: osv

Summary

### 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)

Advisory Timeline

  • First published September 29, 2026 (13 days ago).
  • Last revised September 29, 2026 — 0 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

npm
Update electron to 41.10.6 or later
npm install electron@41.10.6
npm
Update electron to 44.0.0-beta.5 or later
npm install electron@44.0.0-beta.5
npm
Update electron to 43.4.1 or later
npm install electron@43.4.1
npm
Update electron to 42.9.2 or later
npm install electron@42.9.2

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (4)

Affects 1 ecosystem: npm (1).

PackageEcosystemAffectedFixed In
electron
npm
All versions41.10.6
electron
npm
All versions44.0.0-beta.5
electron
npm
All versions43.4.1
electron
npm
All versions42.9.2

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.3 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2026-102676?
Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.3/10).
How do I check if my project is affected by CVE-2026-102676?
CVE-2026-102676 affects electron. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-102676 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.3

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-9qh4-3jw8-366w

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