Moole Vulnerability Database

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High

CVE-2026-26164

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

VectorNETWORK

PublishedMay 07, 2026, 22:16

Published Bysecure@microsoft.com

Base Score

Score7.5

Affected Versions

No affected versions found.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26164

Weakness Type

CWE-74

CVSS Metrics

Base Score

7.5

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Base SeverityHigh

Version

3.1

Attack Vector (AV)

NETWORK