CVE-2026-43678

An unauthenticated remote peer can crash any NIOWebSocket-based server including Vapor and Hummingbird with a single 11-byte frame sent after a completed WebSocket handshake, dropping all active connections until the process restarts. This vulnerability is addressed in swift-nio version 2.101.0...

CVE-2026-43678

An unauthenticated remote peer can crash any NIOWebSocket-based server including Vapor and Hummingbird with a single 11-byte frame sent after a completed WebSocket handshake, dropping all active connections until the process restarts. This vulnerability is addressed in swift-nio version 2.101.0...

CVE-2026-43678

An unauthenticated remote peer can crash any NIOWebSocket-based server including Vapor and Hummingbird with a single 11-byte frame sent after a completed WebSocket handshake, dropping all active connections until the process restarts. This vulnerability is addressed in swift-nio version 2.101.0...

EUVD-2026-63577

An unauthenticated remote peer can crash any NIOWebSocket-based server including Vapor and Hummingbird with a single 11-byte frame sent after a completed WebSocket handshake, dropping all active connections until the process restarts. This vulnerability is addressed in swift-nio version 2.101.0...

CVE-2026-43678

A vulnerability exists in swift-nio affecting NIOWebSocket-based servers , such as Vapor and Hummingbird . An unauthenticated remote attacker can trigger a Denial of Service (DoS) by sending a single 11-byte frame following a completed WebSocket handshake. This causes the server to crash and drop...

CVE-2026-43678

An unauthenticated remote peer can crash any NIOWebSocket-based server including Vapor and Hummingbird with a single 11-byte frame sent after a completed WebSocket handshake, dropping all active connections until the process restarts. This vulnerability is addressed in swift-nio version 2.101.0...

PT-2026-79113

An unauthenticated remote peer can crash any NIOWebSocket-based server including Vapor and Hummingbird with a single 11-byte frame sent after a completed WebSocket handshake, dropping all active connections until the process restarts. This vulnerability is addressed in swift-nio version 2.101.0...

CVE-2026-43678: Improper Input Validation

An unauthenticated remote peer can crash any NIOWebSocket-based server including Vapor and Hummingbird with a single 11-byte frame sent after a completed WebSocket handshake, dropping all active connections until the process restarts. This vulnerability is addressed in swift-nio version 2.101.0...