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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Microsoft
  • Copilot Chat Edge

No data.

No data.

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Vendors Products
References
Link Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47644 cve-icon cve-icon
History

Thu, 04 Jun 2026 22:45:00 +0000

Type Values Removed Values Added
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.
Title Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft copilot Chat Edge
Weaknesses CWE-74
CPEs cpe:2.3:a:microsoft:copilot_chat_edge:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft copilot Chat Edge
References
Metrics cvssV3_1

{'score': 6.5, '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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-06-04T22:00:52.404Z

Reserved: 2026-05-19T20:12:27.070Z

Link: CVE-2026-47644

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-06-04T23:17:32.390

Modified: 2026-06-04T23:17:32.390

Link: CVE-2026-47644

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-04T23:30:26Z