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Microsoft Security Response CenterCVE-2026-47644

Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

Improper neutralization of special elements in output used by a downstream component ('injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to disclose information over a network.

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6.5CVSS out of 10Critical severity
Scope

What the vendor says is affected

  • Copilot Chat (Microsoft Edge)
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-47644View CVSS, KEV, EPSS, and threat context
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