CVE Watch15 jul 2026

CVE-2026-34771

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

CVSS

7.5

Alto

EPSS

0.3%

p21

KEV

—

Exploit Today

0-100

Publicado: 4 abr 2026 · Última mod.: 15 jul 2026 · CWE-416 · CWE-364

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-06-302026-07-17

Descripción técnica

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.

Referencias oficiales

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