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.
Fix
Patch, vendor advisory and mitigation references on NVD 9
- https://github.com/electron/electron/commit/30cf3882de75ee651bd4e5f27002f13fd3d3163a Patch
- https://github.com/electron/electron/commit/4eff3dc09e4d1e62d649c5ce9902f532bb7469c7 Patch
- https://github.com/electron/electron/commit/615d62500fc7732d068274b796c49487e652e90b Patch
- https://github.com/electron/electron/commit/fe2e7d0073949b4593b624b93abf1788f5377e55 Patch
- https://github.com/electron/electron/pull/50946 Issue Tracking, Patch
- https://github.com/electron/electron/pull/50947 Issue Tracking, Patch
- https://github.com/electron/electron/pull/50948 Issue Tracking, Patch
- https://github.com/electron/electron/pull/50949 Issue Tracking, Patch
- https://github.com/electron/electron/security/advisories/GHSA-v93f-fgjr-hjrj Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.3 · electronjsNVD modified 2026-10-08 13:53
Affected (CPE criteria) 9
cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:alpha1:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:alpha2:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:alpha3:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:alpha4:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:alpha5:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:alpha6:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:beta1:*:*:*:node.js:*:*cpe:2.3:a:electronjs:electron:42.0.0:beta2:*:*:*:node.js:*:*
References 13
- https://github.com/electron/electron/commit/30cf3882de75ee651bd4e5f27002f13fd3d3163a Patch
- https://github.com/electron/electron/commit/4eff3dc09e4d1e62d649c5ce9902f532bb7469c7 Patch
- https://github.com/electron/electron/commit/615d62500fc7732d068274b796c49487e652e90b Patch
- https://github.com/electron/electron/commit/fe2e7d0073949b4593b624b93abf1788f5377e55 Patch
- https://github.com/electron/electron/pull/50946 Issue Tracking, Patch
- https://github.com/electron/electron/pull/50947 Issue Tracking, Patch
- https://github.com/electron/electron/pull/50948 Issue Tracking, Patch
- https://github.com/electron/electron/pull/50949 Issue Tracking, Patch
- https://github.com/electron/electron/releases/tag/v39.8.8 Release Notes
- https://github.com/electron/electron/releases/tag/v40.9.0 Release Notes
- https://github.com/electron/electron/releases/tag/v41.2.1 Release Notes
- https://github.com/electron/electron/releases/tag/v42.0.0-beta.3 Release Notes
- https://github.com/electron/electron/security/advisories/GHSA-v93f-fgjr-hjrj Vendor Advisory