CVE-2026-102672

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.

References

• https://github.com/electron/electron/commit/01faabfc250801a980fc94d64608046c67fc1cd9
• https://github.com/electron/electron/commit/15e2928a5c5f01759107b414010e220d90d59cef
• https://github.com/electron/electron/commit/a0f9ff4cc0340545008424232d49caadd9c0c767
• https://github.com/electron/electron/commit/b8f25c4cedb2e0f5f475912b709aba19c57c26be
• https://github.com/electron/electron/pull/50745