{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-43678",
        "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
        "state": "PUBLISHED",
        "assignerShortName": "apple",
        "dateReserved": "2026-05-01T22:46:21.641Z",
        "datePublished": "2026-08-20T18:57:03.222Z",
        "dateUpdated": "2026-08-20T21:10:49.702Z"
    },
    "containers": {
        "cna": {
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "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."
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Apple",
                    "product": "swift-nio",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThan": "2.101.0",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
                }
            ],
            "references": [
                {
                    "url": "https://github.com/apple/swift-nio/security/advisories/GHSA-qcc5-f287-vgmq"
                }
            ],
            "providerMetadata": {
                "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
                "shortName": "apple",
                "dateUpdated": "2026-08-20T21:10:49.702Z"
            }
        },
        "adp": [
            {
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "type": "CWE",
                                "cweId": "CWE-20",
                                "lang": "en",
                                "description": "CWE-20 Improper Input Validation"
                            }
                        ]
                    },
                    {
                        "descriptions": [
                            {
                                "type": "CWE",
                                "cweId": "CWE-770",
                                "lang": "en",
                                "description": "CWE-770 Allocation of Resources Without Limits or Throttling"
                            }
                        ]
                    }
                ],
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 5.3,
                            "attackVector": "NETWORK",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                            "integrityImpact": "NONE",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "LOW",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "NONE"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-20T19:44:43.228142Z",
                                "id": "CVE-2026-43678",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-20T19:44:56.479Z"
                }
            }
        ]
    }
}