AUGUST 16, 2026
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Case File

CVE-2026-70607

MEDIUM · CVSS 5.3 EPSS 0.34% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-05 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

The vulnerability affects Electron applications that utilize the window.open() feature, allowing untrusted web content to manipulate window options without proper restrictions. This can lead to unauthorized access to file or network paths, potentially compromising the main process. Developers of Electron-based applications should prioritize updating to the specified fixed versions to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-70607
Severity
MEDIUM
CVSS
5.3
EPSS
0.34%
Java

Original NVD Description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, some window options supplied by web content in the window.open() features string were applied to the new BrowserWindow without an allowlist. Untrusted content could set window options it should not control, including options that cause the main process to access attacker-chosen file or network paths, when untrusted content can call window.open() and the app does not override child window options via setWindowOpenHandler or overrideBrowserWindowOptions. This issue is fixed in 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3.