Command Injection Vulnerability in Microsoft Copilot
CVE-2026-24301

8.8HIGH

Key Information:

Vendor

Microsoft
Status
Copilot Web
Vendor
CVE Published:
18 August 2026

What is CVE-2026-24301?

A vulnerability in Microsoft Copilot allows an unauthorized attacker to exploit improper handling of special command elements, potentially leading to unauthorized information disclosure over a network. This flaw can compromise sensitive data, emphasizing the importance of applying security patches and monitoring for suspicious activity.

Affected Version(s)

Copilot Web -

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.