Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS

Overview

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.3 until 42.10.0, 43.5.0, and 44.0.0-beta.6, Electron's sandboxed preload code cache did not verify that a cached entry matched the preload it was served for. A compromised renderer could write attacker-controlled cache data and cause Electron to reuse it for a later load, executing the renderer's code in the more privileged preload context. The issue affects applications that load untrusted content. This issue is fixed in versions 42.10.0, 43.5.0, and 44.0.0-beta.6.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

Package advisory (CVE-2026-102677)

Affected packages:

• electron >= 42.3.3, < 42.10.0
• electron >= 43.0.0-beta.1, < 43.5.0
• electron >= 44.0.0-alpha.1, < 44.0.0-beta.6

Patched in:

• electron 42.10.0
• electron 43.5.0
• electron 44.0.0-beta.6

Source: https://github.com/advisories/GHSA-qmv3-fv6v-rmhq