Security vulnerabilities and automated fixes for socket io issues
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A high-severity Denial of Service vulnerability (CVE-2026-59725) was discovered in engine.io versions prior to 6.6.7, where invalid binary POST requests could crash Socket.IO servers. The fix upgrades engine.io from 6.6.5 to 6.6.7, which includes improved validation for binary packet handling and prevents malformed requests from taking down real-time communication channels.