GHSA-3C8V-CFP5-9885 Electron: Out-of-bounds read in second-instance IPC on macOS and Linux

Impact On macOS and Linux, apps that call app.requestSingleInstanceLock were vulnerable to an out-of-bounds heap read when parsing a crafted second-instance message. Leaked memory could be delivered to the app's second-instance event handler. This issue is limited to processes running as the same...

Electron: Use-after-free in offscreen child window paint callback

Impact Apps that use offscreen rendering and allow child windows via window.open may be vulnerable to a use-after-free. If the parent offscreen WebContents is destroyed while a child window remains open, subsequent paint frames on the child dereference freed memory, which may lead to a crash or...

GHSA-MWMH-MQ4G-G6GR Electron: Registry key path injection in app.setAsDefaultProtocolClient on Windows

Impact On Windows, app.setAsDefaultProtocolClientprotocol did not validate the protocol name before writing to the registry. Apps that pass untrusted input as the protocol name may allow an attacker to write to arbitrary subkeys under HKCU\Software\Classes, potentially hijacking existing protocol...

GHSA-JJP3-MQ3X-295M Electron: Use-after-free in PowerMonitor on Windows and macOS

Impact Apps that use the powerMonitor module may be vulnerable to a use-after-free. After the native PowerMonitor object is garbage-collected, the associated OS-level resources a message window on Windows, a shutdown handler on macOS retain dangling references. A subsequent session-change event...

Electron: Use-after-free in PowerMonitor on Windows and macOS

Impact Apps that use the powerMonitor module may be vulnerable to a use-after-free. After the native PowerMonitor object is garbage-collected, the associated OS-level resources a message window on Windows, a shutdown handler on macOS retain dangling references. A subsequent session-change event...

GHSA-9WFR-W7MM-PC7F Electron: Renderer command-line switch injection via undocumented commandLineSwitches webPreference

Impact An undocumented commandLineSwitches webPreference allowed arbitrary switches to be appended to the renderer process command line. Apps that construct webPreferences by spreading untrusted configuration objects may inadvertently allow an attacker to inject switches that disable renderer...

PT-2026-30003

Impact On Windows, app.setAsDefaultProtocolClientprotocol did not validate the protocol name before writing to the registry. Apps that pass untrusted input as the protocol name may allow an attacker to write to arbitrary subkeys under HKCUSoftwareClasses, potentially hijacking existing protocol...

GHSA-VMQV-HX8Q-J7MG Electron has ASAR Integrity Bypass via resource modification

Impact This only impacts apps that have the embeddedAsarIntegrityValidation and onlyLoadAppFromAsar fuses enabled. Apps without these fuses enabled are not impacted. Specifically this issue can only be exploited if your app is launched from a filesystem the attacker has write access too. i.e. the...

GHSA-F9MQ-JPH6-9MHM Arbitrary file read via window-open IPC in Electron

Impact The vulnerability allows arbitrary local file read by defining unsafe window options on a child window opened via window.open. Workarounds Ensure you are calling event.preventDefault on all new-window events where the url or options is not something you expect. Fixed Versions 9.0.0-beta.21...