Electron: Local race condition in Squirrel.Mac update installation on macOS
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.
CVE-2026-102672
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-102672
electron
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "electron",
"product": "electron",
"versions": [
{
"status": "affected",
"version": "< 39.8.10"
},
{
"status": "affected",
"version": ">= 40.0.0-alpha.1, < 41.10.5"
},
{
"status": "affected",
"version": ">= 42.0.0-alpha.1, < 42.0.0-beta.2"
}
]
}
]- Related CVEs
- CVE-2026-102672
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #20786 · Revision 1
- Added to Heist Feed
- Publisher date