CVE-2026-58616

No fix known EPSS <1%CVSS 4.4

Concurrent execution using shared resource with improper synchronization ('race condition') in Copilot Chat (Microsoft Edge) allows an authorized attacker to disclose information over a network.

Published 2026-08-28 · CVE record · OSV

Products: Microsoft Edge (Chromium-based), Microsoft Edge for Android, Microsoft Edge for iOS, Microsoft Edge for Linux, Microsoft Edge for MAC, Microsoft Edge for Windows