What is CVE-2026-34766?

CVE-2026-34766 is a low-severity vulnerability in Electron, classified under Missing Authorization. CVSS score: 3.3/10. Published 2026-04-03.

How severe is CVE-2026-34766?

Low severity. CVSS v3 base score is 3.3 out of 10.

Auth bypass in Electron

CVE-2026-34766

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.0, 40.7.0, and 41.0.0-beta.8, the select-usb-device event callback did not validate the chosen device ID…

Vulnerability class: Broken Access Control

EPSS: 0.000 (1.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N.

Affected products

Electron — versions < 38.8.6, >= 39.0.0-alpha.1, < 39.8.0, >= 40.0.0-alpha.1, < 40.7.0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

https://github.com/electron/electron/security/advisories/GHSA-9899-m83m-qhpj (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-34766?: CVE-2026-34766 is a low-severity vulnerability in Electron, classified under Missing Authorization. CVSS score: 3.3/10. Published 2026-04-03.
How severe is CVE-2026-34766?: Low severity. CVSS v3 base score is 3.3 out of 10.