What is CVE-2026-70603?

CVE-2026-70603 is a medium-severity vulnerability in Electron, classified under Improper Input Validation. CVSS score: 6.0/10. Published 2026-08-05.

How severe is CVE-2026-70603?

Medium severity. CVSS v3 base score is 6.0 out of 10.

Improper input validation in Electron

CVE-2026-70603

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.6, 40.9.0, 41.1.1, and 42.0.0-beta.1, shell.openPath() did not reject paths containing embedded null bytes. Apps that per…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

CVSS v3 metric

CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N.

Affected products

Electron — versions < 39.8.6, >= 40.0.0-alpha.1, < 40.9.0, >= 41.0.0-alpha.1, < 41.1.1

Weakness classification (CWE)

CWE-20 — Improper Input Validation
CWE-158

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-70603?: CVE-2026-70603 is a medium-severity vulnerability in Electron, classified under Improper Input Validation. CVSS score: 6.0/10. Published 2026-08-05.
How severe is CVE-2026-70603?: Medium severity. CVSS v3 base score is 6.0 out of 10.