{"id":"CVE-2026-114369","aliases":["EUVD-2026-124346","GHSA-r58v-83rv-j747","UBUNTU-CVE-2026-114369"],"status":"published","title":"Security Issue CVE-2026-114369 - Resource exhaustion (denial of service) vulnerability in the WebSocket handshake handling of QWebSocket and QWebSocketServer impacts Qt Framework","description":"Resource exhaustion vulnerability in the Qt Framework QWebSocket and QWebSocketServer classes of the Qt WebSockets module","severity":{"version":"4.0","score":2.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/R:A/RE:L/U:Clear","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-14","score":0.00301,"percentile":0.23181,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-407"],"published":"2026-11-12T11:09:29Z","modified":"2026-11-13T21:04:55Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"qtstyleplugins-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.0-1build1","5.0.0-1build3"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"qtstyleplugins-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.0+git23.g335dbec-2build1","5.0.0+git23.g335dbec-2build2","5.0.0+git23.g335dbec-2build3","5.0.0+git23.g335dbec-2build4","5.0.0+git23.g335dbec-2build5"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"qtstyleplugins-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.0+git23.g335dbec-3ubuntu1","5.0.0+git23.g335dbec-3ubuntu2","5.0.0+git23.g335dbec-3ubuntu3","5.0.0+git23.g335dbec-3ubuntu4"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"qtstyleplugins-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.0+git23.g335dbec-4build1","5.0.0+git23.g335dbec-4build2","5.0.0+git23.g335dbec-4build3"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"qtstyleplugins-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.0+git23.g335dbec-6","5.0.0+git23.g335dbec-6build1","5.0.0+git23.g335dbec-6build3","5.0.0+git23.g335dbec-6build4","5.0.0+git23.g335dbec-6build5"]}],"products":[{"vendor":"qt","product":"qt framework"}],"references":[{"url":"https://www.qt.io/security-advisories?search=CVE-2026-114369","tags":["vendor-advisory","report"]},{"url":"https://codereview.qt-project.org/c/qt/qtwebsockets/+/772146","tags":["patch","report"]},{"url":"https://codereview.qt-project.org/c/qt/qtwebsockets/+/772145","tags":["patch","report"]},{"url":"https://codereview.qt-project.org/c/qt/qtwebsockets/+/772144","tags":["patch","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114369"},{"url":"https://github.com/advisories/GHSA-r58v-83rv-j747"},{"url":"https://ubuntu.com/security/CVE-2026-114369","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-114369","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-114369","title":"Security Issue CVE-2026-114369 - 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