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CVE Vendors Products Updated CVSS v3.1
CVE-2026-123139 1 Opera 1 Neon 2026-11-13 N/A
Improper verification of the source of a communication channel vulnerability in Opera Neon on macOS and Windows allows a malicious browser extension to take control of the browser by sending commands through MCP Hub to the built-in Browser Operator extension. This issue affects Opera Neon MCP Hub extension: 0.0.1.