CVE-2026-59118

Copilot Cowork Elevation of Privilege Vulnerability

Published Aug 6, 2026 CVSS 3.1 · 9.3 Critical EPSS < 1% KEV · Not listed
Description
Improper authorization in Copilot Cowork allows an unauthorized attacker to elevate privileges over a network.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Description Improper authorization in Microsoft Power Apps allows an unauthorized attacker to elevate privileges over a network. Improper authorization in Copilot Cowork allows an unauthorized attacker to elevate privileges over a network.
Title Microsoft Power Apps Elevation of Privilege Vulnerability Copilot Cowork Elevation of Privilege Vulnerability
First Time appeared Microsoft copilot Cowork
CPEs cpe:2.3:a:microsoft:power-apps:*:*:*:*:*:*:*:* cpe:2.3:a:microsoft:copilot_cowork:*:*:*:*:*:*:*:*
Vendors & Products Microsoft copilot Cowork
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Improper authorization in Microsoft Power Apps allows an unauthorized attacker to elevate privileges over a network.
Title Microsoft Power Apps Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft power-apps
Weaknesses CWE-285
CPEs cpe:2.3:a:microsoft:power-apps:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft power-apps
References
Metrics cvssV3_1

{'score': 9.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 10:01 PM
Reserved
Jul 2, 2026, 4:05 PM
Status
Modified
Published
Aug 7, 2026, 12:16 AM
Modified
Oct 24, 2026, 4:10 PM