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CVE-2026-102672

CVE-2026-102672 · Electron: Local race condition in Squirrel.Mac update installation on macOS

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.7 · Medium · EPSS 0.1% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • electron

    Versions
    • < 39.8.10: Affected
    • >= 40.0.0-alpha.1, < 41.10.5: Affected
    • >= 42.0.0-alpha.1, < 42.0.0-beta.2: Affected

    No fix published

  • electron npm

    Affected ranges
    • SEMVER: < 39.8.10

    Update to 39.8.10

  • electron npm

    Affected ranges
    • SEMVER: ≥ 40.0.0-alpha.1, < 41.10.5

    Update to 41.10.5

  • electron npm

    Affected ranges
    • SEMVER: ≥ 42.0.0-alpha.1, < 42.0.0-beta.2

    Update to 42.0.0-beta.2

Original sources

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