---
cve: "CVE-2026-34770"
severity: "HIGH"
cvss: 7.0
epss: "25%"
vendor: "electron"
kev: false
exploited: false
published: "2026-04-04 00:16:17"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-16T02:14:16+02:00"
---

# CVE-2026-34770

> 7.0 HIGH · 🧪 PoC

## Beschreibung

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.1, 40.8.0, and 41.0.0-beta.8, 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 (Windows) or system shutdown (macOS) dereferences freed memory, which may lead to a crash or memory corruption. All apps that access powerMonitor events (suspend, resume, lock-screen, etc.) are potentially affected. The issue is not directly renderer-controllable. This issue has been patched in versions 38.8.6, 39.8.1, 40.8.0, and 41.0.0-beta.8.

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- fbc489c43be82f0fc331560ae678a39aeaea38c8 (Commit)
- bd3abf3a2c91fcf09525ea105a9e38e50c19d00a (Commit)

## Referenzen

- <https://github.com/electron/electron/security/advisories/GHSA-jjp3-mq3x-295m>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-34770) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_