CVE WatchJul 24, 2026

CVE-2026-34770

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

CVSS

7.0

High

EPSS

0.2%

p15

KEV

—

Exploit Today

0-100

Published: Apr 4, 2026 · Last modified: Jul 24, 2026 · CWE-416

EPSS · 30d

0.2%EPSS · 30 days0.2%

2026-07-312026-08-27

Technical 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.

Official references

github.comhttps://github.com/electron/electron/security/advisories/GHSA-jjp3-mq3x-295m

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5.0%

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