CVE-2026-102672: Electron: Local race condition in Squirrel.Mac update installation on macOS
On macOS, Electron bundles the Squirrel.Mac auto-update framework, whose privileged ShipIt helper performs the final step of an update as root. A local attacker could cause that helper to overwrite a different application’s files, as root, instead of the app that started the update. Exploitation requires local access to the machine.
Apps are only affected on macOS if they ship Squirrel.Mac-based auto-updates. Apps on other platforms, or that do not use Squirrel.Mac auto-updates, are not affected.
References
- github.com/advisories/GHSA-vv43-5jgx-7qv8
- github.com/electron/electron/commit/01faabfc250801a980fc94d64608046c67fc1cd9
- github.com/electron/electron/commit/15e2928a5c5f01759107b414010e220d90d59cef
- github.com/electron/electron/commit/a0f9ff4cc0340545008424232d49caadd9c0c767
- github.com/electron/electron/commit/b8f25c4cedb2e0f5f475912b709aba19c57c26be
- github.com/electron/electron/pull/50745
- github.com/electron/electron/releases/tag/v39.8.10
- github.com/electron/electron/releases/tag/v41.10.5
- github.com/electron/electron/releases/tag/v42.0.0-beta.2
- github.com/electron/electron/security/advisories/GHSA-vv43-5jgx-7qv8
- nvd.nist.gov/vuln/detail/CVE-2026-102672
Code Behaviors & Features
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