What is Electron used for?

Electron is a framework that allows developers to build cross-platform desktop applications using web technologies like HTML, CSS, and JavaScript. It's popular for creating applications like Slack, Discord, and Visual Studio Code.

How can I determine if my application is vulnerable?

Check the Electron version used in your project. If it's older than the versions listed in the CVE descriptions, your application is vulnerable and needs to be updated immediately. Use #SITE_NAME# to quickly identify vulnerable dependencies.

What should I do if I can't immediately update Electron?

While updating is the recommended solution, consider implementing temporary workarounds, such as input sanitization and strict device ID validation, to mitigate the risks until a full update can be applied.

Critical Electron Vulnerabilities: PowerMonitor, Login Settings, Header Injection, and USB Device Handling

Q: Why are these Electron vulnerabilities concerning?

These vulnerabilities can lead to various security issues, including crashes, memory corruption, unauthorized code execution, and data breaches, potentially impacting the confidentiality, integrity, and availability of desktop applications.

Several critical vulnerabilities have been identified in Electron, a popular framework for building cross-platform desktop applications. These vulnerabilities, affecting versions prior to 38.8.6, 39.8.1, 39.8.3, 40.7.0, 40.8.0, 40.8.3, and 41.0.3, could lead to crashes, memory corruption, unauthorized code execution, and data breaches. Patches are now available, and immediate action is recommended.

The CVSS scores range from 3.3 to 7, indicating a range of potential impacts, from relatively minor to critical, depending on the specific vulnerability and deployment context.

What is Electron?

Electron is an open-source framework developed by GitHub that allows developers to build cross-platform desktop applications using web technologies like JavaScript, HTML, and CSS. It combines Chromium (the open-source project behind Google Chrome) and Node.js, enabling developers to leverage their existing web development skills to create native desktop applications for Windows, macOS, and Linux. Because Electron applications are built using web technologies, they are susceptible to many of the same security vulnerabilities that affect web applications. If you're using Electron to build your desktop application, it's crucial to stay informed about security updates and vulnerabilities. search all electron CVEs to ensure your application remains secure.

Use-after-free in PowerMonitor

CVSS7.0

Affected versionsElectron versions prior to 38.8.6, 39.8.1, 40.8.0, and 41.0.0-beta.8 are affected. Applications that utilize the powerMonitor module for events like suspend, resume, or lock-screen are potentially vulnerable.

High severity due to potential for memory corruption and crashes.

This vulnerability affects 1.5% of Electron deployments.

A use-after-free vulnerability exists within the PowerMonitor module on Windows and macOS. After the native PowerMonitor object is garbage-collected, dangling references to OS-level resources are retained, leading to potential crashes or memory corruption when a session-change event (Windows) or system shutdown (macOS) occurs.

How to fix CVE-2026-34770 in Electron

Patch immediately

1.Update Electron to version 38.8.6 or later.

Update Electron

npm update electron

Verify with:

verify

electron --version

NextGuard automatically flags CVE-2026-34770 if Electron appears in any of your monitored projects — no manual lookup required.

Unquoted executable path in app.setLoginItemSettings

CVSS3.9

Affected versionsElectron versions prior to 38.8.6, 39.8.1, 40.8.0, and 41.0.0-beta.8 running on Windows are affected. Exploitation requires write access to an ancestor directory.

Moderate severity due to potential for unauthorized code execution.

This vulnerability affects 1.2% of Electron deployments.

On Windows, the `app.setLoginItemSettings({openAtLogin: true})` function writes the executable path to the Run registry key without proper quoting. If the application is installed in a directory with spaces, an attacker with write access to a parent directory could potentially replace the intended executable with a malicious one.

How to fix CVE-2026-34768 in Electron

Patch within 24h

1.Update Electron to version 38.8.6 or later.

Update Electron

npm update electron

Verify with:

verify

electron --version

NextGuard automatically flags CVE-2026-34768 if Electron appears in any of your monitored projects — no manual lookup required.

HTTP Response Header Injection

CVSS5.9

Affected versionsElectron versions prior to 38.8.6, 39.8.3, 40.8.3, and 41.0.3 are affected. Applications that reflect external input into response headers are vulnerable.

Medium severity due to potential for header manipulation.

This vulnerability affects 2.9% of Electron deployments.

Apps registering custom protocol handlers or modifying response headers via `webRequest.onHeadersReceived` are vulnerable to HTTP response header injection if attacker-controlled input is reflected into a header name or value. This allows an attacker to inject additional headers, potentially affecting cookies, content security policy, or cross-origin access controls.

How to fix CVE-2026-34767 in Electron

Patch within 7 days

1.Update Electron to version 38.8.6 or later.

Update Electron

npm update electron

Verify with:

verify

electron --version

Workaround: Sanitize all external input before reflecting it into response headers.

NextGuard automatically flags CVE-2026-34767 if Electron appears in any of your monitored projects — no manual lookup required.

USB device selection not validated

CVSS3.3

Affected versionsElectron versions prior to 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8 are affected. Apps with unusual device-selection logic are potentially vulnerable.

Low severity due to limited practical impact.

This vulnerability affects 1.1% of Electron deployments.

The `select-usb-device` event callback did not validate the chosen device ID against the filtered list. An app could potentially grant access to a device outside the intended filter set.

How to fix CVE-2026-34766 in Electron

Patch within 7 days

1.Update Electron to version 38.8.6 or later.

Update Electron

npm update electron

Verify with:

verify

electron --version

Workaround: Implement strict device ID validation within your application's device selection logic.

NextGuard automatically flags CVE-2026-34766 if Electron appears in any of your monitored projects — no manual lookup required.

Stay ahead of Node.js vulnerabilities

Proactive vulnerability management is essential for maintaining a secure application ecosystem. monitor your nodejs dependencies to identify and address potential risks before they can be exploited.

Compare Dependencies

Frequently asked questions

Addressing these Electron vulnerabilities is crucial for maintaining the security and stability of your desktop applications. Regularly update Electron and stay informed about new vulnerabilities. see all nodejs vulnerabilities to ensure a robust security posture.