CVE-2020-15215
Context isolation bypass in Electron
- Published
- Oct 6, 2020
- Updated
- Aug 4, 2024
- Assigning CNA
- GitHub_M
- Evidence observed
- Aug 17, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:LLow · next 30 days
- Percentile
- 50.7%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1Proof-of-concept validation harness for Electron boundary hardening, modeling renderer/main-process isolation, IPC policy enforcement, and navigation controls to study desktop application security vulnerabilities.
Responsible use
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