CVE Intelligence

Apple Swiftnio vulnerabilities

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Published CVEs affecting Apple Swiftnio: 1 record(s), with affected versions and fixes.
cpe:2.3:a:apple:swiftnio

CVE-2026-43678 Medium · 5.3 CWE-20 Aug 20, 2026
Improper Input Validation in Apple Swiftnio
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.