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[ CVE-2026-113797 · Published 21 Oct 2026 ]

Electron: Extension tabs.query returns tab URLs and titles without the tabs permission

CVSS 3.1 EPSS <1%Fix available

[ Description ]Official description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 42.11.1, 43.5.1, 44.1.1, and 45.0.0-alpha.4, chrome.tabs.query() returned each tab's url and title to extensions that had neither the tabs permission nor matching host permissions. An application that loaded an extension it did not fully trust through session.extensions.loadExtension could therefore allow that extension to read the URL and title of every webContents in its session. This issue is fixed in versions 42.11.1, 43.5.1, 44.1.1, and 45.0.0-alpha.4.

[ Fixes ]Fixes and patches

  • electron 45.0.0-alpha.4Fixed version · GitHub Advisories · npm package electron: upgrade to 45.0.0-alpha.4 or later (affected >= 45.0.0-alpha.1, < 45.0.0-alpha.4)
  • electron 44.1.1Fixed version · GitHub Advisories · npm package electron: upgrade to 44.1.1 or later (affected >= 44.0.0-alpha.1, < 44.1.1)
  • electron 43.5.1Fixed version · GitHub Advisories · npm package electron: upgrade to 43.5.1 or later (affected >= 43.0.0-alpha.1, < 43.5.1)
  • electron 42.11.1Fixed version · GitHub Advisories · npm package electron: upgrade to 42.11.1 or later (affected < 42.11.1)

[ Packages ]Affected open-source packages

[ References ]References