CVE-2026-26136: Microsoft Copilot Information Disclosure Vulnerability

Overview

Severity

Medium (CVSS 6.5)

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

Category

Information Disclosure

Exploit Status

Not Exploited

Patch Tuesday

2026-Mar

Released

2026-03-19

Description

Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to disclose information over a network.

Affected Products (1)

Other

• Microsoft Copilot

Acknowledgments

<a href="https://www.linkedin.com/in/spandan0x50">Spandan Pokhrel</a>

Revision History

• 2026-03-19: Information published.