CVE-2026-34770
Description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.1, 40.8.0, and 41.0.0-beta.8, apps that use the powerMonitor module may be vulnerable to a use-after-free. After the native PowerMonitor object is garbage-collected, the associated OS-level resources (a message window on Windows, a shutdown handler on macOS) retain dangling references. A subsequent session-change event (Windows) or system shutdown (macOS) dereferences freed memory, which may lead to a crash or memory corruption. All apps that access powerMonitor events (suspend, resume, lock-screen, etc.) are potentially affected. The issue is not directly renderer-controllable. This issue has been patched in versions 38.8.6, 39.8.1, 40.8.0, and 41.0.0-beta.8.
How to fix
- electronjs electron38.8.6, 39.8.1, 40.8.0 or later
- electron38.8.6, 39.8.1, 40.8.0, 41.0.0-beta.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| electronjs electron | v < 38.8.6, 39.0.0 ≤ v < 39.8.1, 40.0.0 ≤ v < 40.8.0, 41.0.0 | 38.8.6, 39.8.1, 40.8.0 |
| electronnpm | v < 38.8.6, 39.0.0-alpha.1 ≤ v < 39.8.1, 40.0.0-alpha.1 ≤ v < 40.8.0, 41.0.0-alpha.1 ≤ v < 41.0.0-beta.8 | 38.8.6, 39.8.1, 40.8.0, 41.0.0-beta.8 |
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Attack Surface Management
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