{"id":"CVE-2026-105946","state":"PUBLISHED","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.","publishedAt":"2026-10-27T06:45:36.400Z","updatedAt":"2026-10-27T06:45:36.400Z","severity":{"score":5.3,"label":"Medium","version":"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","source":"Qt"},"assigner":"Qt","products":["qt 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