CVE-2026-47644

MEDIUM

Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

Title source: cna

Description

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.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory patch

Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47644

Scores

CVSS v3 6.5

EPSS 0.0050

EPSS Percentile 38.8%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-74

Status published

Products (2)

Microsoft/Copilot Chat (Microsoft Edge) -

microsoft/copilot_chat

Published Jun 04, 2026

Tracked Since Jun 05, 2026