Medium severity6.6NVD Advisory· Published Aug 5, 2026· Updated Sep 8, 2026
CVE-2026-70602
CVE-2026-70602
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
electronnpm | < 39.8.8 | 39.8.8 |
electronnpm | >= 40.0.0-alpha.1, < 40.9.0 | 40.9.0 |
electronnpm | >= 41.0.0-alpha.1, < 41.2.1 | 41.2.1 |
electronnpm | >= 42.0.0-alpha.1, < 42.0.0-beta.3 | 42.0.0-beta.3 |
Affected products
1- Range: <39.8.8, <40.9.0, <41.2.1, <42.0.0-beta.3
Patches
Vulnerability mechanics
References
2News mentions
1- Electron Framework: 16 Vulnerabilities Disclosed, Including Sandbox Bypass and Prototype PollutionVypr Intelligence · Aug 5, 2026