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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-70607

Electron: window.open features string controls some window options considered privileged

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Status
Published
Published
Updated
Assigning organization
GitHub_M

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

electron electron

  • < 39.8.8affected
  • >= 40.0.0-alpha.1, < 40.9.0affected
  • >= 41.0.0-alpha.1, < 41.2.1affected
  • >= 42.0.0-alpha.1, < 42.0.0-beta.3affected

References