Disclosure summary
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3, extension tab and scripting APIs were not scoped to the extension's own session. A malicious or compromised extension loaded into one session could navigate, script, and read from windows belonging to a different session. Apps are only affected if they load Chrome extensions via session.loadExtension and rely on separate sessions to isolate that extension from other content. This issue is fixed in versions 39.8.8, 40.9.0, 41.2.1, and 42.0.0-beta.3.
Source-reported weakness categories
CWE-284
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2026-70602
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| electronjs | electron | * {"versionStartIncluding":"41.0.0","versionEndExcluding":"41.2.1"} |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
| electronjs | electron | 42.0.0 |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Vendor Advisory
PUBLISHED 2026-08-05T12:17:04-04:00
MODIFIED 2026-10-08T09:54:05-04:00
INGESTED 2026-10-10T20:25:11-04:00