CVE-2026-33102

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-33102
Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.

9.3 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33102 Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:365_copilot:-:*:*:*:*:*:*:*
History

29 Apr 2026, 19:04

Type Values Removed Values Added
References () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33102 - () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33102 - Vendor Advisory
First Time Microsoft 365 Copilot
Microsoft
CPE cpe:2.3:a:microsoft:365_copilot:-:*:*:*:*:*:*:*

23 Apr 2026, 22:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-04-23 22:16

Updated : 2026-04-29 19:04

NVD link : CVE-2026-33102

Mitre link : CVE-2026-33102

CVE.ORG link : CVE-2026-33102

JSON object : View

Products Affected

microsoft

  • 365_copilot
CWE
CWE-601

URL Redirection to Untrusted Site ('Open Redirect')