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

Project Subscriptions

Vendors Products
Microsoft Subscribe
Copilot Studio Subscribe
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Mon, 02 Feb 2026 13:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:microsoft:copilot_studio:-:*:*:*:*:*:*:*

Fri, 23 Jan 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 22 Jan 2026 23:00:00 +0000

Type Values Removed Values Added
Description Exposure of Sensitive Information to an Unauthorized Actor in Copilot Studio allows a unauthenticated attacker to view sensitive information through network attack vector
Title Copilot Studio Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft copilot Studio
Weaknesses CWE-77
CPEs cpe:2.3:a:microsoft:copilot_studio:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft copilot Studio
References
Metrics cvssV3_1

{'score': 7.5, 'vector': '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-02-13T20:41:02.655Z

Reserved: 2025-12-30T18:10:54.846Z

Link: CVE-2026-21520

cve-icon Vulnrichment

Updated: 2026-01-23T20:06:07.593Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-22T23:15:57.657

Modified: 2026-02-02T13:31:19.580

Link: CVE-2026-21520

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses