High 7.1Published Mar 13, 2026

CVE-2026-26133M365 Copilot Information Disclosure Vulnerability

Updated under an hour ago (Oct 27, 2026, 7:50 PM ET)

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It affects Microsoft 365 Copilot for Android and 28 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Microsoft 365 Copilot for Android

Exploited in the last 30 days

AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.

CVSS: 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C
Weakness (CWE): CWE-77
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: microsoft
NVD analysis: Modified
Record last updated: Jun 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Microsoft Microsoft 365 Copilot for Android microsoft:365_copilot_for_android (from the name)	from 1.0 before 16.0.19815.10000	CNA record
Microsoft Microsoft 365 Copilot for iOS microsoft:365_copilot_for_ios (from the name)	from 1.0 before 2.107.2	CNA record
Microsoft Microsoft Edge for Android microsoft:edge_for_android (from the name)	from 1.0.0 before 145.3800.99	CNA record
Microsoft Microsoft Edge for iOS microsoft:edge_for_ios (from the name)	from 1.0.0.0 before 145.3800.99	CNA record
Microsoft Microsoft Excel for Android microsoft:excel_for_android (from the name)	from 16.0.0.0 before 16.0.19822.20038	CNA record
Microsoft Microsoft Excel for iOS microsoft:excel_for_ios (from the name)	from 1.0 before 2.106.26020617	CNA record
Microsoft Microsoft Loop for iOS microsoft:loop_for_ios (from the name)	from 2.0.0 before 2.106.26020617	CNA record
Microsoft Microsoft OneNote microsoft:onenote (from the name)	from 1.0.0 before 2.106.26020617	CNA record
Microsoft Microsoft OneNote for Android microsoft:onenote_for_android (from the name)	from 16.0.1 before 16.0.19725.20142	CNA record
Microsoft Microsoft Outlook for Android microsoft:outlook_for_android (from the name)	from 1.0 before 5.2605	CNA record
1–10 of 30

References

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26133	vendor-advisory, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.