PatchSiren

electron CVE debriefs

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

HIGH electron CVE published 2026-04-04

CVE-2026-34774

CVE-2026-34774 is a high-severity use-after-free vulnerability in Electron, a framework for building cross-platform desktop applications. The vulnerability affects applications that use offscreen rendering and allow child windows via window.open(). If the parent offscreen WebContents is destroyed while a child window remains open, subsequent paint frames on the child may dereference freed memory, potentia [truncated]