CVE-2020-15215

Context isolation bypass in Electron

MEDIUM
5.6
CVSS Score
Published: October 6, 2020 at 06:00 PM UTC
Updated: June 17, 2026 at 02:56 AM UTC
2 products affected across 2 vendorsElectronElectron

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Severity
MEDIUM5.6
Exploit prediction
EPSS 0.7%

Description

Electron before versions 11.0.0-beta.6, 10.1.2, 9.3.1 or 8.5.2 is vulnerable to a context isolation bypass. Apps using both `contextIsolation` and `sandbox: true` are affected. Apps using both `contextIsolation` and `nodeIntegrationInSubFrames: true` are affected. This is a context isolation bypass, meaning that code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 10.1.2v < 11.0.0-beta.6v < 8.5.2v < 9.3.1
Affected range stops below 10.1.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.0.0-beta.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.5.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.3.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

5.6MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-668CWE-693

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