{"id":"CVE-2026-105946","revision":null,"records":[{"revision":"55a32379249d4628be74ecf5e6fd699a","observedAt":"2026-10-27T08:06:15.166+00:00","statement":{"source":"cve-program","id":"CVE-2026-105946","aliases":[],"title":"Out-of-bounds read vulnerability in NTLM authentication handling impacts Qt","description":"Out-of-bounds read in the QAuthenticator NTLM authentication handling in the Qt Network module in Qt Group Qt allows remote attackers to obtain sensitive information (heap memory contents) or cause a denial of service (application crash) via a crafted NTLM challenge sent by a malicious server or proxy, when an application using QNetworkAccessManager or QTcpSocket authenticates with NTLM.","state":0,"publishedAt":"2026-10-27T06:45:36.4+00:00","modifiedAt":"2026-10-27T06:45:36.4+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\": \"6.8.0\",\n                            \"versionType\": \"python\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"6.8.0\",\n                            \"lessThan\": \"6.8.10\",\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                    \"cpes\": [\n                        \"cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*\",\n                        \"cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*\"\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:P","score":5.3,"severity":"MEDIUM"}],"references":["https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-105946:","https://codereview.qt-project.org/c/qt/qtbase/+/745457","https://codereview.qt-project.org/c/qt/qtbase/+/744448","https://codereview.qt-project.org/c/qt/qtbase/+/745464"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-105946","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-105946","identifiers":["CVE-2026-105946"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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