What is CVE-2026-70606?

CVE-2026-70606 is a medium-severity vulnerability in Electron, classified under Exposure of Resource to Wrong Sphere. CVSS score: 5.9/10. Published 2026-08-05.

How severe is CVE-2026-70606?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Electron

CVE-2026-70606

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 40.10.6, 41.9.1, 42.5.1, and 43.0.0, when a custom protocol handler returned a ProtocolResponse with a url and no session, Ele…

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N.

Affected products

Electron — versions >= 40.0.0-alpha.1, < 40.10.6, >= 41.0.0-alpha.1, < 41.9.1, >= 42.0.0-alpha.1, < 42.5.1

Weakness classification (CWE)

CWE-668 — Exposure of Resource to Wrong Sphere

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-70606?: CVE-2026-70606 is a medium-severity vulnerability in Electron, classified under Exposure of Resource to Wrong Sphere. CVSS score: 5.9/10. Published 2026-08-05.
How severe is CVE-2026-70606?: Medium severity. CVSS v3 base score is 5.9 out of 10.