Improper neutralization of special elements in output used by a downstream component ('injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to disclose i...
Date: 2026-06
Affected: microsoft/copilot_chat
Attack vector: other
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2026-33833
CVE-2026-41109
CVE-2026-47644
CWE: CWE-74
CVSS: 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)

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.


Mitigations:

Architectural layers (MAESTRO):