CVE-2026-34774

highPriorität · verfolgen · 0EPSS 0.004 · 38. PerzentilEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.44% (38th) EPSS

CVSS 8.1 · high

Is it mine?

9 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · bewertet 2026-10-27

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 39.8.1, 40.7.0, and 41.0.0, 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 memory corruption. Apps are only affected if they use offscreen rendering (webPreferences.offscreen: true) and their setWindowOpenHandler permits child windows. Apps that do not use offscreen rendering, or that deny child windows, are not affected. This issue has been patched in versions 39.8.1, 40.7.0, and 41.0.0.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

8.1

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · security-advisories@github.comAusnutzbarkeit 2.2 · Auswirkung 5.9

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HsecondaryAusnutzbarkeit 2.2 · Auswirkung 5.9

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-416USCWE-416USCWE-825US

betroffene Produkte (9)

Betroffene Produkte und Versionsbereiche.

Electron Electron≤ < 39.8.1enisa_euvdEU
Electron Electron40.0.0-alpha.1, → 40.7.0enisa_euvdEU
Electron Electron41.0.0-alpha.1, → 41.0.0enisa_euvdEU
electronjs electron< 39.8.1nvdUScpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
electronjs electron40.0.0 → 40.7.0nvdUScpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
electronjs electron= 41.0.0nvdUScpe:2.3:a:electronjs:electron:*:*:*:*:*:*:*:*
npm electron< 39.8.1osvUSpkg:npm/electron
npm electron40.0.0-alpha.1 → 40.7.0osvUSpkg:npm/electron
npm electron41.0.0-alpha.1 → 41.0.0osvUSpkg:npm/electron

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

GHSA-532v-xpq5-8h95Electron: Use-after-free in offscreen child window paint callback2026-04-03ghsa · osvUS
### 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 memory corruption. Apps are only affected if they use offscreen rendering (`webPreferences.offscreen: true`) and their `setWindowOpenHandler` permits 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 * `41.0.0` * `40.7.0` * `39.8.1` ### For more information If there are any questions or comments about this advisory, please email [security@electronjs.org](mailto:security@electronjs.org)

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

veröffentlicht 2026-04-04geändert 2026-07-24

Referenzen (7)

Externe Belege — Patches, Meldungen, Analysen.

scry

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