VULNERABILITY INTELLIGENCE

CVE-2020-4076

CVSS score7.8 HIGH

EPSS probability0.37%

CISA KEVNot currently listed

Published2020-07-07

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Description

In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, there is a context isolation bypass. Code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions. Apps using contextIsolation are affected. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.

Weakness classification

CWE-501: Trust Boundary Violation

Primary references

security-advisories@github.com — Third Party Advisory
security-advisories@github.com — Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory