{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-59724", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-06T15:34:16.916Z", "datePublished": "2026-07-08T15:35:39.813Z", "dateUpdated": "2026-07-08T15:35:39.813Z"}, "containers": {"cna": {"title": "Socket.IO: Engine.IO WebTransport SID DoS", "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "lang": "en", "description": "CWE-20: Improper Input Validation", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/socketio/socket.io/security/advisories/GHSA-gr94-w7qr-f4j3", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/socketio/socket.io/security/advisories/GHSA-gr94-w7qr-f4j3"}, {"name": "https://github.com/socketio/socket.io/commit/1fa1f46cd420ac5b57bb4c04c959b58f3c79158c", "tags": ["x_refsource_MISC"], "url": "https://github.com/socketio/socket.io/commit/1fa1f46cd420ac5b57bb4c04c959b58f3c79158c"}, {"name": "https://github.com/socketio/socket.io/releases/tag/engine.io@6.6.7", "tags": ["x_refsource_MISC"], "url": "https://github.com/socketio/socket.io/releases/tag/engine.io@6.6.7"}], "affected": [{"vendor": "socketio", "product": "socket.io", "versions": [{"version": ">= 6.5.0, < 6.6.7", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-08T15:35:39.813Z"}, "descriptions": [{"lang": "en", "value": "Socket.IO enables bidirectional and low-latency communication for every platform. From 6.5.0 before 6.6.7, Engine.IO servers with WebTransport enabled can resolve a crafted session ID such as __proto__ through an inherited property of the clients object during WebTransport upgrade handling, causing a TypeError and denial of service. This issue is fixed in version 6.6.7."}], "source": {"advisory": "GHSA-gr94-w7qr-f4j3", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{}