Shared from twixb · bleepingcomputer.com

Critical Nginx UI auth bypass flaw now actively exploited in the wild

bleepingcomputer.com·Apr 15, 2026

A serious vulnerability in Nginx UI with Model Context Protocol (MCP) support is currently being exploited, allowing attackers to take over servers without requiring authentication.

For a professional in cybersecurity, the critical takeaway is the urgent need to prioritize patching and securing Nginx environments, especially those with Model Context Protocol (MCP) support, to prevent unauthorized server takeovers. Immediate action should include reviewing access controls and ensuring all Nginx deployments are updated to mitigate this actively exploited zero-day vulnerability.

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