CVE-2026-34775: Electron: nodeIntegrationInWorker not correctly scoped in shared renderer processes

April 3, 2026 (updated April 6, 2026)

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.

References

github.com/advisories/GHSA-xwr5-m59h-vwqr
github.com/electron/electron
github.com/electron/electron/security/advisories/GHSA-xwr5-m59h-vwqr
nvd.nist.gov/vuln/detail/CVE-2026-34775

Code Behaviors & Features

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