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Node.js CVE-2026-34775

MEDIUM
Improper Isolation or Compartmentalization (CWE-653)
2026-04-03 https://github.com/electron/electron GHSA-xwr5-m59h-vwqr
Information Disclosure Node.js Microsoft
6.8
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

3
Patch released
Apr 03, 2026 - 08:30 nvd
Patch available
Analysis Generated
Apr 03, 2026 - 02:45 vuln.today
CVE Published
Apr 03, 2026 - 02:43 nvd
MEDIUM 6.8

DescriptionNVD

Impact

The nodeIntegrationInWorker webPreference was not correctly scoped in all configurations. In certain process-sharing scenarios, workers spawned in frames configured with nodeIntegrationInWorker: false could still receive Node.js integration.

Apps are only affected if they enable nodeIntegrationInWorker. Apps that do not use nodeIntegrationInWorker are not affected.

Workarounds

Avoid enabling nodeIntegrationInWorker in apps that also open child windows or embed content with differing webPreferences.

Fixed Versions

  • 41.0.0
  • 40.8.4
  • 39.8.4
  • 38.8.6

For more information

If there are any questions or comments about this advisory, please email [security@electronjs.org](mailto:security@electronjs.org)

AnalysisAI

Electron's nodeIntegrationInWorker webPreference fails to properly isolate Node.js integration in worker contexts across certain process-sharing configurations, allowing workers in frames explicitly configured with nodeIntegrationInWorker: false to unexpectedly gain Node.js capabilities. Only applications that explicitly enable nodeIntegrationInWorker are affected. …

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CVE-2026-34775 vulnerability details – vuln.today
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