5.3

CVE-2026-34776

Electron: Out-of-bounds read in second-instance IPC on macOS and Linux

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 parsing a crafted second-instance message. Leaked memory could be delivered to the app's second-instance event handler. This issue is limited to processes running as the same user as the Electron app. Apps that do not call app.requestSingleInstanceLock() are not affected. Windows is not affected by this issue. This issue has been patched in versions 38.8.6, 39.8.1, 40.8.1, and 41.0.0.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Electronjs ≫ Electron SwPlatform node.js Version < 38.8.6
Electronjs ≫ Electron SwPlatform node.js Version >= 39.0.0 < 39.8.1
Electronjs ≫ Electron SwPlatform node.js Version >= 40.0.0 < 40.8.1
Electronjs ≫ Electron Version 41.0.0 Update alpha1 SwPlatform node.js
Electronjs ≫ Electron Version 41.0.0 Update alpha2 SwPlatform node.js
Electronjs ≫ Electron Version 41.0.0 Update alpha3 SwPlatform node.js
Electronjs ≫ Electron Version 41.0.0 Update alpha4 SwPlatform node.js
Electronjs ≫ Electron Version 41.0.0 Update alpha5 SwPlatform node.js
Electronjs ≫ Electron Version 41.0.0 Update alpha6 SwPlatform node.js
Electronjs ≫ Electron Version 41.0.0 Update beta1 SwPlatform node.js
Electronjs ≫ Electron Version 41.0.0 Update beta2 SwPlatform node.js
Electronjs ≫ Electron Version 41.0.0 Update beta3 SwPlatform node.js
Electronjs ≫ Electron Version 41.0.0 Update beta4 SwPlatform node.js
Electronjs ≫ Electron Version 41.0.0 Update beta5 SwPlatform node.js
Electronjs ≫ Electron Version 41.0.0 Update beta6 SwPlatform node.js
Electronjs ≫ Electron Version 41.0.0 Update beta7 SwPlatform node.js
Electronjs ≫ Electron Version 41.0.0 Update beta8 SwPlatform node.js
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.22% 0.121
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
security-advisories@github.com 5.3 1 4.2
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:L
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

https://github.com/electron/electron/security/advisories/GHSA-3c8v-cfp5-9885
Vendor Advisory