{"apiVersion":"1.0","identifier":"CVE-2026-43678","description":"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.","publishedAt":"2026-08-20T19:16:52","lastModifiedAt":"2026-08-28T17:48:52","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-43678","cvssScore":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","epssProbability":0.00285,"riskScore":0.54,"affectedProduct":"swift-nio","affectedVersions":"<2.101.0","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-43678","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-43678","en":"https://www.redsauce.net/en/cves/CVE-2026-43678","fr":"https://www.redsauce.net/fr/cves/CVE-2026-43678","pt":"https://www.redsauce.net/pt/cves/CVE-2026-43678","de":"https://www.redsauce.net/de/cves/CVE-2026-43678","sk":"https://www.redsauce.net/sk/cves/CVE-2026-43678","el":"https://www.redsauce.net/el/cves/CVE-2026-43678"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-43678"}}