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OpenAdvisories
High · 7.5 CVE-2026-26129 EUVD-2026-28445GHSA-hpvr-rjcg-4q53

M365 Copilot Information Disclosure Vulnerability

Published May 7, 2026 · Updated Aug 10, 2026 · Assigned by microsoft

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 products

VendorProductAffectedFixed
Microsoft Microsoft 365 Copilot's Business Chat - —

Advisories 2

References