Home/CVE/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 mai
CVE

CVE-2020-4076

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 mai

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.

HIGH · CVSS 7.8 EPSS 0.00075
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules2 YARA rules0
⬡

Weakness Classification

CWE-501Trust Boundary Violation
▤

Affected Products & Versions

3
electronjs electron>= 7.0.0 and < 7.2.4
electronjs electron>= 8.0.0 and < 8.2.4
electronjs electronall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
npm electron HIGH fixed in 7.2.4
◈

Sigma Hunt Rules

2
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumPotentially Suspicious Electron Application CommandLine
productmediumSuspicious Electron Application Child Processes
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD07 Jul 2020 · 12:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/electron/electron/security/advisories/GHSA-m93v-9qjc-3g79Third Party Advisory
https://www.electronjs.org/releases/stable?page=3#release-notes-for-v824Release NotesVendor Advisory
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