CVE-2026-34776 — Electron is a framework for writing cross-platform desktop applications using…
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🚨 CVE-2026-34776 Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.1, 40.8.1, and 41.0.0, on macOS and Linux, apps that call app.requestSingleInstanceLock() were vulnerable to an out-of-bounds heap read when parsin
What This Means For You
- Affects Microsoft ecosystem — check your Windows/Azure environments.
- New vulnerability disclosed — verify if your stack is exposed.
- Data exposure reported — check if your organization or users are affected.
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-34776 | Memory Corruption | Electron framework versions prior to 38.8.6, 39.8.1, 40.8.1, and 41.0.0 on macOS and Linux. Vulnerability occurs when parsing a crafted second-instance message in apps that call app.requestSingleInstanceLock(), leading to an out-of-bounds heap read. |
| CVE-2026-34776 | Information Disclosure | Electron framework versions prior to 38.8.6, 39.8.1, 40.8.1, and 41.0.0 on macOS and Linux. Leaked memory from an out-of-bounds heap read could be delivered to the app's second-instance event handler. |
Source & Attribution
| Source Platform | Telegram |
| Channel | CVE Notify |
| Published | April 04, 2026 at 03:27 UTC |
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