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CVE-2026-26164

HIGH CVSS: 7.5 Published: 2026-05-07 Modified: 2026-06-17

Description

Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.

Affected Platforms

Microsoft 365 Copilot Chat

Weakness Type

CWE-74

References