Out-of-bounds Read in Electron

CVE-2026-114122

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 42.11.6, 43.7.3, 44.4.3, and 45.0.0-alpha.9, frame data received from the GPU process for webContents.beginFrameSubscription was not fully validated by the main process. An attacker who had separately gained code execution in the GPU process could supply inconsistent frame geometry and cause the main process to read out-of-bounds memory while producing captured frame images, disclosing memory or crashing the application. This issue is fixed in versions 42.11.6, 43.7.3, 44.4.3, and 45.0.0-alpha.9.

Vulnerability class: Buffer Overflow

Published .

CVSS v3 metric

CVSS v3 base score 3.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

  • Electron — versions < 42.11.6, >= 43.0.0-alpha.1, < 43.7.3, >= 44.0.0-alpha.1, < 44.4.3

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-114122?
CVE-2026-114122 is a low-severity vulnerability in Electron, classified under Out-of-bounds Read. CVSS score: 3.9/10. Published 2026-10-21.
How severe is CVE-2026-114122?
Low severity. CVSS v3 base score is 3.9 out of 10.