{"id":"EUVD-2026-42312","revision":"0f7557b9a63d4eb09db62d55824e32f7","records":[{"revision":"0f7557b9a63d4eb09db62d55824e32f7","observedAt":"2026-11-05T12:42:13.919+00:00","statement":{"source":"euvd","id":"EUVD-2026-42312","aliases":["CVE-2026-59724","GHSA-gr94-w7qr-f4j3"],"title":"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 c…","description":"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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":null}],"references":["https://github.com/socketio/socket.io/security/advisories/GHSA-gr94-w7qr-f4j3","https://github.com/socketio/socket.io/commit/1fa1f46cd420ac5b57bb4c04c959b58f3c79158c","https://github.com/socketio/socket.io/releases/tag/engine.io@6.6.7"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-42312","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jul 8, 2026, 3:35:39 PM","dateUpdated":"Jul 8, 2026, 7:41:18 PM"},"relatedAdvisories":[{"id":"RHSA-2026:26994","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","vulnerabilityIds":["CVE-2026-45491","CVE-2026-45591","CVE-2026-45736","CVE-2026-59724","CVE-2026-59868","CVE-2026-59870"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-42312","identifiers":["EUVD-2026-42312","CVE-2026-59724","GHSA-gr94-w7qr-f4j3"]},"retained":false,"historicalAffected":[]}],"coverage":[]}