{"id":"CVE-2026-16762","revision":"72a63ea30cc74002a0aa3c1e14dda97c","records":[{"revision":"72a63ea30cc74002a0aa3c1e14dda97c","observedAt":"2026-10-23T16:01:20.601+00:00","statement":{"source":"cve-program","id":"CVE-2026-16762","aliases":[],"title":"Denial-of-service vulnerability in the Qt Core QXmlStream parser (QXmlStreamReader) impacts Qt","description":"An attacker able to supply a crafted XML document to an application using QXmlStreamReader can cause disproportionate CPU consumption during parsing, making the application unresponsive (denial of service). Exploitation requires only that the application parse attacker-influenced XML; no authentication, privileges, or user interaction beyond ingesting the input are needed. There is no loss of confidentiality or integrity — no data disclosure, data modification, or code execution — and the impact is contained to the affected process.","state":0,"publishedAt":"2026-10-23T08:58:40.028+00:00","modifiedAt":"2026-10-23T10:56:05.83+00:00","affected":[{"ecosystem":"Vendor product","name":"qt","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"qt\",\n                    \"product\": \"qt\",\n                    \"modules\": [\n                        \"qtbase\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"status\": \"unknown\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.3.0\",\n                            \"versionType\": \"python\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"4.3.0\",\n                            \"lessThan\": \"6.8.9\",\n                            \"versionType\": \"python\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"6.9.0\",\n                            \"lessThan\": \"6.11.2\",\n                            \"versionType\": \"python\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/S:P/AU:Y/R:A/RE:L","score":8.7,"severity":"HIGH"}],"references":["https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-16762:","https://codereview.qt-project.org/c/qt/qtbase/+/738885","https://codereview.qt-project.org/c/qt/qtbase/+/738901"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-16762","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-16762","identifiers":["CVE-2026-16762"]},"retained":false,"historicalAffected":[]}],"coverage":[]}