MEDIUM 4.4 Microsoft

CVE-2026-58616

Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

Microsoft Security Update 2026-Aug: Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

Affected Products

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

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58616
https://nvd.nist.gov/vuln/detail/CVE-2026-58616

Published: 2026-08-11 · Source: Microsoft · Feed updated: 2026-10-13

This medium severity vulnerability with a CVSS score of 4.4 was published on 2026-08-11 via Microsoft. Affected: Microsoft Edge (Chromium-based), Microsoft Edge for Android, Microsoft Edge for MAC and 3 more.

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