GHSA-532v-xpq5-8h95
Suggest an improvement- Source
- https://github.com/advisories/GHSA-532v-xpq5-8h95
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-532v-xpq5-8h95/GHSA-532v-xpq5-8h95.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-532v-xpq5-8h95
- Aliases
-
- CVE-2026-34774
- Published
- 2026-04-03T02:42:27Z
- Modified
- 2026-04-03T02:50:18.735972Z
- Severity
-
- 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- Electron: Use-after-free in offscreen child window paint callback
- Details
-
Impact
Apps that use offscreen rendering and allow child windows via
window.open()may be vulnerable to a use-after-free. If the parent offscreenWebContentsis destroyed while a child window remains open, subsequent paint frames on the child dereference freed memory, which may lead to a crash or memory corruption.Apps are only affected if they use offscreen rendering (
webPreferences.offscreen: true) and theirsetWindowOpenHandlerpermits child windows. Apps that do not use offscreen rendering, or that deny child windows, are not affected.Workarounds
Deny child window creation from offscreen renderers in your
setWindowOpenHandler, or ensure child windows are closed before the parent is destroyed.Fixed Versions
41.0.040.7.039.8.1
For more information
If there are any questions or comments about this advisory, please email security@electronjs.org
- Database specific
{ "cwe_ids": [ "CWE-416" ], "github_reviewed": true, "nvd_published_at": null, "severity": "HIGH", "github_reviewed_at": "2026-04-03T02:42:27Z" }- References
Affected packages
npm / electron
Package
- Name
- electron
- View open source insights on deps.dev
- Purl
- pkg:npm/electron
npm / electron
Package
- Name
- electron
- View open source insights on deps.dev
- Purl
- pkg:npm/electron
npm / electron
Package
- Name
- electron
- View open source insights on deps.dev
- Purl
- pkg:npm/electron