CVE-2026-47644 MEDIUM

CVE-2026-47644: Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

Vendor Microsoft
Product Copilot Chat (Microsoft Edge)
Weakness CWE-74
Published June 4, 2026
Last update June 15, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 4, 2026 CVE published
June 15, 2026 Record updated