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

🗓️ 03 Apr 2026 02:43:59Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 2 Views

Electron macOS/Linux second instance memory read when using requestSingleInstanceLock; patch.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-34776
3 Apr 202623:56
attackerkb
Circl
CVE-2026-34776
4 Apr 202605:24
circl
CNNVD
Electron 缓冲区错误漏洞
4 Apr 202600:00
cnnvd
CVE
CVE-2026-34776
3 Apr 202623:56
cve
Cvelist
CVE-2026-34776 Electron: Out-of-bounds read in second-instance IPC on macOS and Linux
3 Apr 202623:56
cvelist
EUVD
EUVD-2026-18951
3 Apr 202602:43
euvd
NVD
CVE-2026-34776
4 Apr 202600:16
nvd
OSV
GHSA-3C8V-CFP5-9885 Electron: Out-of-bounds read in second-instance IPC on macOS and Linux
3 Apr 202602:43
osv
Positive Technologies
PT-2026-30006
3 Apr 202600:00
ptsecurity
RedhatCVE
CVE-2026-34776
6 Apr 202616:47
redhatcve
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Vulners
Node
electronelectronRange41.0.0-alpha.141.0.0npm
OR
electronelectronRange40.0.0-alpha.140.8.1npm
OR
electronelectronRange39.0.0-alpha.139.8.1npm
OR
electronelectronRange<38.8.6npm

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06 Apr 2026 23:11Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.15.3
EPSS0.00012
SSVC
2