CVE-2026-34774 identifies a use-after-free vulnerability in Electron, affecting applications built with versions prior to 39.8.1, 40.7.0, and 41.0.0. This flaw specifically impacts Electron apps that utilize offscreen rendering and permit child windows, where the destruction of a parent offscreen WebContents while a child window remains open can lead to dereferencing freed memory. Rated 8.1 High, the vulnerability has a network attack vector but high attack complexity, potentially resulting in application crashes or memory corruption. There is currently no evidence of active exploitation, nor is public exploit code available, and community discussion remains minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 39.8.1CPE matchmatch criteria | cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:* | ||
>= 40.0.0, < 40.7.0CPE matchmatch criteria | cpe:2.3:a:electronjs:electron:*:*:*:*:*:node.js:*:* | ||
41.0.0CPE matchmatch criteria | cpe:2.3:a:electronjs:electron:41.0.0:alpha1:*:*:*:node.js:*:* | ||
41.0.0CPE matchmatch criteria | cpe:2.3:a:electronjs:electron:41.0.0:alpha2:*:*:*:node.js:*:* | ||
41.0.0CPE matchmatch criteria | cpe:2.3:a:electronjs:electron:41.0.0:alpha3:*:*:*:node.js:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.