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CVE Watch24 jul 2026

CVE-2026-34778

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

5.9

Medio

EPSS

0.1%

p2

KEV

—

Exploit Today

1

0-100

Publicado: 4 abr 2026 · Última mod.: 24 jul 2026 · CWE-290 · CWE-345

EPSS · 30d

0.1%EPSS · 30 días0.1%

2026-08-032026-08-31

Descripción técnica

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.1, 40.8.1, and 41.0.0, a service worker running in a session could spoof reply messages on the internal IPC channel used by webContents.executeJavaScript() and related methods, causing the main-process promise to resolve with attacker-controlled data. Apps are only affected if they have service workers registered and use the result of webContents.executeJavaScript() (or webFrameMain.executeJavaScript()) in security-sensitive decisions. This issue has been patched in versions 38.8.6, 39.8.1, 40.8.1, and 41.0.0.

Referencias oficiales

github.comhttps://github.com/electron/electron/security/advisories/GHSA-xj5x-m3f3-5x3h

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