CVE-2026-70607Medium· 5.3▾ SunlitElectron 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 …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 29.2 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
0.3% → 0.4%
Last analysed / modified upstream
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
electron < 39.8.8electron >= 40.0.0-alpha.1, < 40.9.0electron >= 41.0.0-alpha.1, < 41.2.1electron >= 42.0.0-alpha.1, < 42.0.0-beta.3Patched in:
electron 39.8.8electron 40.9.0electron 41.2.1electron 42.0.0-beta.3Connected by shared product, vendor, weakness, or advisory.
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