CVE-2026-59118
Copilot Cowork Elevation of Privilege Vulnerability
- State
- Published
- Severity
- 9.3 Critical
- Published
- Aug 6, 2026
- Updated
- Oct 30, 2026
- Reserved
- Jul 2, 2026
Description
Improper authorization in Copilot Cowork allows an unauthorized attacker to elevate privileges over a network.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.3 Critical | 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 | microsoft |
Weaknesses
- CWE-285 Improper Authorization
Affected Products
| Product | Versions |
|---|---|
Copilot CoworkMicrosoft |
|
References
- Copilot Cowork Elevation of Privilege Vulnerabilityvendor-advisorypatch
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