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.
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Tue, 13 Oct 2026 22:30:00 +0000
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| 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. | |
| Title | Electron: Local race condition in Squirrel.Mac update installation on macOS | |
| Weaknesses | CWE-367 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-10-13T15:52:46.436Z
Updated: 2026-10-13T20:22:22.127Z
Reserved: 2026-09-29T16:10:04.075Z
Link: CVE-2026-102672
Updated: 2026-10-13T20:14:16.423Z
Status : Awaiting Analysis
Published: 2026-10-13T16:17:09.343
Modified: 2026-10-16T20:02:37.630
Link: CVE-2026-102672
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