CVE-2026-70599
CVE-2026-70599 · Electron: Permission Check Handler Receives Main Frame Origin Instead of Requesting Iframe Origin
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 5.9 · Medium · EPSS 0.2% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
electron
- Versions
- < 39.8.7: Affected
- >= 40.0.0-alpha.1, < 40.9.0: Affected
- >= 41.0.0-alpha.1, < 41.2.0: Affected
- >= 42.0.0-alpha.1, < 42.0.0-beta.1: Affected
No fix published
electron npm
- Affected ranges
- SEMVER: < 39.8.7
Update to 39.8.7
electron npm
- Affected ranges
- SEMVER: ≥ 40.0.0-alpha.1, < 40.9.0
Update to 40.9.0
electron npm
- Affected ranges
- SEMVER: ≥ 41.0.0-alpha.1, < 41.2.0
Update to 41.2.0
electron npm
- Affected ranges
- SEMVER: ≥ 42.0.0-alpha.1, < 42.0.0-beta.1
Update to 42.0.0-beta.1