CVE-2026-21520 PUBLISHED CVSS 7.5 HIGH

Exposure of Sensitive Information to an Unauthorized Actor in Copilot Studio allows a unauthenticated attacker to view sensitive information through network attack vector

EPSS 0.09% · 25.0th percentile

Risk Scores

CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C/CR:H/IR:L/AR:L
EPSS Score
0.09%
25.0th percentile

Affected Products

VendorProductVersions
microsoftcopilot_studio-
MicrosoftMicrosoft Copilot Studio-

Timeline

References

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