# CVE-2026-26133: M365 Copilot Information Disclosure Vulnerability

> CVE-2026-26133: M365 Copilot Information Disclosure Vulnerability. CVSS 7.1 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-26133
Last updated: 2026-06-19T18:18:11Z

- Published: 2026-03-13 21:10 UTC · Updated: 2026-06-19 18:18 UTC · Assigner: microsoft
- CVSS: 7.1 (CVSS 3.1) · Severity: High · Vector: 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
- EPSS: 0.44%, 38th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-77

## Description

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

## Affected vendors and products

- Microsoft: Microsoft 365 Copilot for Android
- Microsoft: Microsoft 365 Copilot for iOS
- Microsoft: Microsoft Edge for Android
- Microsoft: Microsoft Edge for iOS
- Microsoft: Microsoft Excel for Android
- Microsoft: Microsoft Excel for iOS
- Microsoft: Microsoft Loop for iOS
- Microsoft: Microsoft OneNote
- Microsoft: Microsoft OneNote for Android
- Microsoft: Microsoft Outlook for Android
- Microsoft: Microsoft Outlook for iOS
- Microsoft: Microsoft Outlook for Mac
- Microsoft: Microsoft PowerBI for Android
- Microsoft: Microsoft PowerBI for iOS
- Microsoft: Microsoft PowerPoint for Android
- Microsoft: Microsoft PowerPoint for iOS
- Microsoft: Microsoft Teams for Android
- Microsoft: Microsoft Teams for iOS
- Microsoft: Microsoft Word for Android
- Microsoft: Microsoft Word for iOS

## Tracked companies

- [Microsoft Teams](https://rewindex.com/company/microsoft-teams.md)
- [Power BI](https://rewindex.com/company/power-bi.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-26133)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-26133)
- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26133](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26133)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-26133 · Markdown: https://rewindex.com/cve/CVE-2026-26133.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-26133 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T04:04:42.636Z