CVE-2026-102672 · GHSA-vv43-5jgx-7qv8
Electron: Local race condition in Squirrel.Mac update installation on macOS
- Risk score
- 45/100
- CVSS
- 6.7 v3.1
- Exploit chance (30 days)
- 0.1%
- Published
- 29 Sep 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 …
- Affected
- electron (npm) < 39.8.10; electron (npm) >= 40.0.0-alpha.1, < 41.10.5; electron (npm) >= 42.0.0-alpha.1, < 42.0.0-beta.2
- Fix
- Upgrade electron to 39.8.10 or 41.10.5 or 42.0.0-beta.2 (whichever matches your release line) or later.
- Exploitation
- No known exploitation
Story map
At a glance
electron: Amber, patch this week. Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to 42.11.16, 43.8.1, 44.9.1, and 45.0.0-beta.6, Electron does not block compromised eMudhra intermediate certificates in Chromium networking, Node.js tls, Node.js https, or Node.js fetch. An attacker who holds…
The flaws
- CVE-2026-102672: Electron: Local race condition in Squirrel.Mac update installation on macOS (CVSS 6.7 · EPSS 0%)
- CVE-2026-115570: Electron: Mitigation for compromised eMudhra intermediate certificates (CVSS 7.4 · EPSS 0%)
- CVE-2026-102675: Electron: File and HTTP protocol handlers allow cross-origin reads without corsEnabled (CVSS 7.4 · EPSS 0%)
- CVE-2026-113800: Electron: HID and USB permission checks can be attributed to the wrong origin (CVSS 5.4 · EPSS 0%)
The fix
Upgrade electron: 39.8.10 · 41.10.5 · 42.0.0 · 42.11.16 · 43.8.1 · 44.9.1 or later on your release line
Who is exposed: electron (npm) >= 45.0.0-alpha.1, < 45.0.0-beta.6; electron (npm) >= 44.0.0-alpha.1, < 44.9.1; electron (npm) >= 43.0.0-alpha.1, < 43.8.1; electron (npm) < 42.11.16
Where it stands
- No known exploitation
Connects to
- Same weakness: CWE-367 (CWE-367). 47 other warnings in 30 days
Why it is Yellow
- CVSS 6.7 medium
- On your watchlist: npm
Affected packages
| Package | Ecosystem | Vulnerable | Fixed in |
|---|---|---|---|
| electron | npm | < 39.8.10 | 39.8.10 |
| electron | npm | >= 40.0.0-alpha.1, < 41.10.5 | 41.10.5 |
| electron | npm | >= 42.0.0-alpha.1, < 42.0.0-beta.2 | 42.0.0-beta.2 |
References
- https://github.com/advisories/GHSA-vv43-5jgx-7qv8
- https://github.com/electron/electron/security/advisories/GHSA-vv43-5jgx-7qv8
- https://github.com/electron/electron/pull/50745
- 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/releases/tag/v39.8.10
- https://github.com/electron/electron/releases/tag/v41.10.5
- https://github.com/electron/electron/releases/tag/v42.0.0-beta.2
Original 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.
Last activity 29 Sep 2026. Patch Forecast updates every hour.