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CVE-2026-54130 — M365 Copilot Information Disclosure Vulnerability

Missing authentication for critical function in M365 Copilot allows an unauthorized attacker to disclose information over a network.

Published: 2026-06-18 · CVSS: 9.8 · CVSS 3.1

Missing authentication for critical function in M365 Copilot allows an unauthorized attacker to disclose information over a network.

Original CVE JSON · STIX 2.1

Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7