CVE-2026-70599 - Electron: Permission Check Handler Receives Main Frame Origin Instead of Requesting Iframe Origin
CVE ID :CVE-2026-70599
Published : Aug. 5, 2026, 4:17 p.m. | 38 minutes ago
Description :Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1, serial-port and media permission checks made from an iframe passed the top-level frame origin to session.setPermissionCheckHandler instead of the requesting iframe origin. Origin-based handler logic could grant a cross-origin iframe device access intended only for the top-level origin. This issue is fixed in 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1.
Severity: 5.9 | MEDIUM
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Published : Aug. 5, 2026, 4:17 p.m. | 38 minutes ago
Description :Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1, serial-port and media permission checks made from an iframe passed the top-level frame origin to session.setPermissionCheckHandler instead of the requesting iframe origin. Origin-based handler logic could grant a cross-origin iframe device access intended only for the top-level origin. This issue is fixed in 39.8.7, 40.9.0, 41.2.0, and 42.0.0-beta.1.
Severity: 5.9 | MEDIUM
Visit the link for more details, such as CVSS details, affected products, timeline, and more...