CVE-2026-102677 Electron - Privilege Escalation

Electron 42.3.3 to 42.10.0, 43.5.0, and 44.0.0-beta.6 contains a privilege escalation caused by improper verification of cached sandboxed preload code, letting compromised renderers execute code in privileged preload context, exploit requires loading untrusted content.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.10% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
29 September 2026
Updated
15 October 2026
Weakness
CWE-20

Vendor fix

Update to versions 42.10.0, 43.5.0, 44.0.0-beta.6 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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