CVE-2026-34771
Description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, apps that register an asynchronous session.setPermissionRequestHandler() may be vulnerable to a use-after-free when handling fullscreen, pointer-lock, or keyboard-lock permission requests. If the requesting frame navigates or the window closes while the permission handler is pending, invoking the stored callback dereferences freed memory, which may lead to a crash or memory corruption. Apps that do not set a permission request handler, or whose handler responds synchronously, are not affected. This issue has been patched in versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8.
How to fix
- electronjs electron38.8.6, 39.8.0, 40.7.0 or later
- electron38.8.6, 39.8.0, 40.7.0, 41.0.0-beta.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| electronjs electron | v < 38.8.6, 39.0.0 ≤ v < 39.8.0, 40.0.0 ≤ v < 40.7.0, 41.0.0 | 38.8.6, 39.8.0, 40.7.0 |
| electronnpm | v < 38.8.6, 39.0.0-alpha.1 ≤ v < 39.8.0, 40.0.0-alpha.1 ≤ v < 40.7.0, 41.0.0-alpha.1 ≤ v < 41.0.0-beta.8 | 38.8.6, 39.8.0, 40.7.0, 41.0.0-beta.8 |
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Attack Surface Management
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