Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5, responses served through protocol.registerFileProtocol or protocol.registerHttpProtocol for a custom scheme registered with supportFetchAPI enabled but corsEnabled disabled could remain script-readable across origins. This residual issue completes the remediation for CVE-2026-70604.
Applications are affected only when they expose such a scheme and load untrusted content in the same session. Schemes intentionally registered with corsEnabled enabled remain cross-origin readable by design. This issue is fixed in versions 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
electron:electron
References 9
https://github.com/electron/electron/security/advisories/GHSA-j84w-jfhq-vhvj
https://github.com/electron/electron/security/advisories/GHSA-j84w-jfhq-vhvj
https://github.com/electron/electron/commit/4d2784cc8592471ee2276235b8c2a03efdd…
https://github.com/electron/electron/commit/4d2784cc8592471ee2276235b8c2a03efddf937d
https://github.com/electron/electron/commit/80178e4631cb2f6a5e42f8e793b2ae9624e…
https://github.com/electron/electron/commit/80178e4631cb2f6a5e42f8e793b2ae9624e78a0d
https://github.com/electron/electron/commit/c595b05976e7a885465b043d17e00a92fc3…
https://github.com/electron/electron/commit/c595b05976e7a885465b043d17e00a92fc3c3397
https://github.com/electron/electron/commit/ef75c4b98caaa3ebc615f1eba302027028e…
https://github.com/electron/electron/commit/ef75c4b98caaa3ebc615f1eba302027028ee04d2
https://github.com/electron/electron/releases/tag/v41.10.6
https://github.com/electron/electron/releases/tag/v41.10.6
https://github.com/electron/electron/releases/tag/v42.9.2
https://github.com/electron/electron/releases/tag/v42.9.2
https://github.com/electron/electron/releases/tag/v43.4.1
https://github.com/electron/electron/releases/tag/v43.4.1
https://github.com/electron/electron/releases/tag/v44.0.0-beta.5
https://github.com/electron/electron/releases/tag/v44.0.0-beta.5