Buffer overflow in Electron

CVE-2026-54257

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.1 until 42.3.3, Buffer performs incorrect byte length calculations resulting in heap buffer under/overflow. Most apps will cr…

Vulnerability class: Buffer Overflow

Affected products

  • Electron — versions >= 42.3.1, < 42.3.3

Weakness classification (CWE)

References