CVE-2026-34775 Electron: nodeIntegrationInWorker not correctly scoped in shared renderer processes
Attackers can execute arbitrary code in Electron apps by bypassing nodeIntegrationInWorker restrictions in shared renderer processes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-34775?
CVE-2026-34775 is a medium-severity vulnerability in Electronjs Electron, published on 3 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.4, 40.8.4, and 41.0.0, 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. This issue has been patched in versions 38.8.6, 39.8.4, 40.8.4, and 41.0.0.
Weakness: CWE-653
Which versions are affected by CVE-2026-34775?
8 open source packages ship an affected version, including electron. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
electron npm | All versions | 38.8.6 |
electron npm | All versions | 38.8.6 |
electron npm | From 39.0.0-alpha.1 | 39.8.4 |
electron npm | From 39.0.0-alpha.1 | 39.8.4 |
electron npm | From 40.0.0-alpha.1 | 40.8.4 |
electron npm | From 40.0.0-alpha.1 | 40.8.4 |
2 more packages
electron npm | From 41.0.0-alpha.1 | 41.0.0 |
electron npm | From 41.0.0-alpha.1 | 41.0.0 |
Products include Electronjs Electron.
How do I fix CVE-2026-34775?
Upgrade electron to a fixed version for your release line: 38.8.6, 39.8.4, 40.8.4 or 41.0.0.
Is CVE-2026-34775 being exploited?
There is no known exploitation of CVE-2026-34775 in the wild and no public exploit code.
Other vulnerabilities in Electronjs Electron
- CVE-2017-16151 Chromium Remote Code Execution in electron
- CVE-2018-1000118 Electron protocol handler browser vulnerable to Command Injection
- CVE-2026-34780 Electron: Context Isolation bypass via contextBridge VideoFrame transfer
- CVE-2026-102676 Electron: <webview> can enable Node.js integration in Web Workers despite embedder restrictions
- CVE-2026-102673 Electron drops inherited HTML sandbox restrictions for popups opened through OpenURLFromTab
Sources
Also known as GHSA-xwr5-m59h-vwqr.