CVE-2026-70602

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.

CVSS v3 6.6 MEDIUM

6.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.3 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/electron/electron/security/advisories/GHSA-m55f-7gqj-fr98

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-05 16:17

Updated : 2026-09-08 20:44

NVD link : CVE-2026-70602

Mitre link : CVE-2026-70602

CVE.ORG link : CVE-2026-70602

JSON object : View

Products Affected

No product.

CWE

CWE-284

Improper Access Control

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