What is CVE-2026-34780?

CVE-2026-34780 is a high-severity vulnerability in Electron, classified under Exposure of Resource to Wrong Sphere. CVSS score: 8.4/10. Published 2026-04-04.

How severe is CVE-2026-34780?

High severity. CVSS v3 base score is 8.4 out of 10.

RCE in Electron

CVE-2026-34780

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From versions 39.0.0-alpha.1 to before 39.8.0, 40.0.0-alpha.1 to before 40.7.0, and 41.0.0-alpha.1 to before 41.0.0-beta.8, apps that p…

EPSS: 0.000 (1.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Electron — versions >= 39.0.0-alpha.1, < 39.8.0, >= 40.0.0-alpha.1, < 40.7.0, >= 41.0.0-alpha.1, < 41.0.0-beta.8

Weakness classification (CWE)

References

https://github.com/electron/electron/security/advisories/GHSA-jfqg-hf23-qpw2 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-34780?: CVE-2026-34780 is a high-severity vulnerability in Electron, classified under Exposure of Resource to Wrong Sphere. CVSS score: 8.4/10. Published 2026-04-04.
How severe is CVE-2026-34780?: High severity. CVSS v3 base score is 8.4 out of 10.