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CVE PROGRAM SOURCE RECORD6.7 Medium

CVE-2026-102672

Electron: Local race condition in Squirrel.Mac update installation on macOS

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 39.8.10, 41.10.5, and 42.0.0-beta.2, Electron applications on macOS that use Squirrel.Mac-based automatic updates are vulnerable to a local race in the privileged ShipIt helper. The helper did not bind the validated update target to one canonical application-bundle path for the full installation, allowing a local attacker to redirect the root-level write so that it overwrites another application's files instead of the application that initiated the update. Applications on other platforms and macOS applications that do not use Squirrel.Mac-based automatic updates are not affected. This issue is fixed in versions 39.8.10, 41.10.5, and 42.0.0-beta.2.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

electron electron

  • < 39.8.10affected
  • >= 40.0.0-alpha.1, < 41.10.5affected
  • >= 42.0.0-alpha.1, < 42.0.0-beta.2affected

References