What is CVE-2026-70601?

CVE-2026-70601 is a high-severity vulnerability in Electron, classified under Protection Mechanism Failure. CVSS score: 7.5/10. Published 2026-08-05.

How severe is CVE-2026-70601?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Electron

CVE-2026-70601

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.9, 40.9.2, 41.2.2, and 42.0.0-beta.5, apps that expose Promise-returning functions to web content via contextBridge may b…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N.

Affected products

Electron — versions < 39.8.9, >= 40.0.0-alpha.1, < 40.9.2, >= 41.0.0-alpha.1, < 41.2.2

Weakness classification (CWE)

CWE-693 — Protection Mechanism Failure

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-70601?: CVE-2026-70601 is a high-severity vulnerability in Electron, classified under Protection Mechanism Failure. CVSS score: 7.5/10. Published 2026-08-05.
How severe is CVE-2026-70601?: High severity. CVSS v3 base score is 7.5 out of 10.