CVE-2026-102674 Electron - Broken Access Control

Electron < 41.10.6, 42.9.2, 43.4.1, and 44.0.0-beta.5 contains a broken access control caused by sandboxed top-level documents not inheriting active HTML sandbox restrictions, letting untrusted content create windows with full application origin, exploit requires ability to open popups.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.27% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Published
29 September 2026
Updated
15 October 2026
Weakness
CWE-266

Vendor fix

Update to versions 41.10.6, 42.9.2, 43.4.1, 44.0.0-beta.5 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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