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[ CVE-2026-113796 · Published 21 Oct 2026 ]

Electron: SameSite cookie restrictions are not applied to windows opened from links

CVSS 4.2 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 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.6, Electron treated pages opened into a new window from links as application-initiated navigations instead of preserving the page containing the link as the initiator. The resulting top-level request could be classified as same-site, causing SameSite=Strict cookies to be sent and Sec-Fetch-Site not to identify the initiating page. An application that loads untrusted content and permits it to open new windows could therefore allow that content to make a credentialed request to another site that relies on SameSite cookies for CSRF protection. This issue is fixed in versions 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.6.

[ Fixes ]Fixes and patches

  • electron 45.0.0-alpha.6Fixed version · GitHub Advisories · npm package electron: upgrade to 45.0.0-alpha.6 or later (affected >= 45.0.0-alpha.1, < 45.0.0-alpha.6)
  • electron 44.3.0Fixed version · GitHub Advisories · npm package electron: upgrade to 44.3.0 or later (affected >= 44.0.0-alpha.1, < 44.3.0)
  • electron 43.7.0Fixed version · GitHub Advisories · npm package electron: upgrade to 43.7.0 or later (affected >= 43.0.0-alpha.1, < 43.7.0)
  • electron 42.11.3Fixed version · GitHub Advisories · npm package electron: upgrade to 42.11.3 or later (affected < 42.11.3)

[ Packages ]Affected open-source packages

[ References ]References