What is GHSA-mcvx-hvv7-4q3h?

GHSA-mcvx-hvv7-4q3h is a security advisory published by GitHub Security Advisories with High severity. Concurrent execution using shared resource with improper synchronization ('race condition') in...

Which CVE IDs does GHSA-mcvx-hvv7-4q3h cover?

GHSA-mcvx-hvv7-4q3h covers the following CVE IDs: CVE-2026-42900. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-mcvx-hvv7-4q3h?

GHSA-mcvx-hvv7-4q3h has a CVSS v3 base score of 8.1, published by GitHub Security Advisories.

GHSA-mcvx-hvv7-4q3hHighCVSS 8.1

Concurrent execution using shared resource with improper synchronization ('race condition') in...

Vendor

GitHub Security Advisories

Published

July 14, 2026

Last Modified

July 14, 2026

🔗 CVE IDs covered (1)

CVE-2026-42900 →

📋 Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows App Store allows an unauthorized attacker to elevate privileges over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-42900
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42900
https://github.com/advisories/GHSA-mcvx-hvv7-4q3h