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EUVD-2026-281190

2026-10-06T02:22:08.355889+00:00

EUVD-2026-281190

fkie_cve-2026-34770

2026-10-06T02:22:08.355924+00:00

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.

GHSA-jjp3-mq3x-295m — Electron: Use-after-free in PowerMonitor on Windows and macOS

2026-10-06T02:22:08.355961+00:00

Affected: npm: electron

### Impact 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.

### Workarounds There are no app side workarounds, you must update to a patched version of Electron.

### Fixed Versions * `41.0.0-beta.8` * `40.8.0` * `39.8.1` * `38.8.6`

### For more information If there are any questions or comments about this advisory, please email [security@electronjs.org](mailto:security@electronjs.org)