PT-2026-68979

Impact When a custom protocol handler returned a ProtocolResponse with a url and no session, Electron made the upstream request through defaultSession instead of the session that handled the protocol. A cached response could then be reused across otherwise isolated session partitions. Apps that u...

PT-2026-68211

Name of the Vulnerable Software and Affected Versions Electron versions prior to 40.10.6 Electron versions prior to 41.9.1 Electron versions prior to 42.5.1 Electron versions prior to 43.0.0 Description When a custom protocol handler returns a ProtocolResponse containing a url but lacking a...

CVE-2026-70606: Exposure of Resource to Wrong Sphere

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 40.10.6, 41.9.1, 42.5.1, and 43.0.0, when a custom protocol handler returned a ProtocolResponse with a url and no session, Electron made the upstream request through defaultSession...