CVE-2026-54130
Critical · 9.8CVSS
9.8
EPSS
1.1%
Published
Jun 18, 2026
CISA due date
—
The record
Missing authentication for critical function in M365 Copilot allows an unauthorized attacker to disclose information over a network.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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