GHSA-vv43-5jgx-7qv8: electron (CVE-2026-102672)

Package	Ecosystem	Affected	Fixed in
electron	npm	<39.8.10 \|\| >=40.0.0-alpha.1, <41.10.5 \|\| >=42.0.0-alpha.1, <42.0.0-beta.2	39.8.10, 41.10.5, 42.0.0-beta.2

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Electron versions before 39.8.10, from 40.0.0-alpha.1 before 41.10.5, and from 42.0.0-alpha.1 before 42.0.0-beta.2 are affected on macOS, where the bundled Squirrel.Mac auto-update framework has a local race condition. A local attacker could cause its privileged ShipIt helper, which runs as root, to overwrite files of a different application instead of the one that started the update; only apps that use Squirrel.Mac auto-updates are affected. Upgrade to Electron 39.8.10, 41.10.5, 42.0.0-beta.2 or later, since the source says there are no app-side workarounds.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.7	Medium	3.1	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0009, the 1st percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

29 Aug 2026, 05:44 UTC Published by the maintainers as a GitHub repository advisory
31 Oct 2026, 13:34 UTC First seen by agentprime
31 Oct 2026, 13:34 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.