{"schema":"threatline.record/2","record":{"id":"CVE-2026-105946","aliases":[],"summary":"Out-of-bounds read vulnerability in NTLM authentication handling impacts Qt","details":"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.","categories":["Unclassified"],"product":"qt","vendor":"qt","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-105946","source_modified_at":"2026-10-27T06:45:36.400Z","fetched_at":"2026-10-27T10:24:27.527526Z","product":"qt","vendor":"qt","versions":[{"status":"unknown","version":"0","lessThan":"6.8.0","versionType":"python"},{"status":"affected","version":"6.8.0","lessThan":"6.8.10","versionType":"python"},{"status":"affected","version":"6.9.0","lessThan":"6.11.2","versionType":"python"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-105946","source_modified_at":"2026-10-27T06:45:36.400Z","fetched_at":"2026-10-27T10:24:27.527526Z","package":{"name":"qt","ecosystem":null},"version":"6.8.10","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-105946","source_modified_at":"2026-10-27T06:45:36.400Z","fetched_at":"2026-10-27T10:24:27.527526Z","package":{"name":"qt","ecosystem":null},"version":"6.11.2","basis":"first unaffected version stated in the CVE record"}],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-27T06:45:36.400Z","modified_at":"2026-10-27T06:45:36.400Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-105946","fetched_at":"2026-10-27T10:24:27.527526Z","source_modified_at":"2026-10-27T06:45:36.400Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-105946:","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://codereview.qt-project.org/c/qt/qtbase/+/745457","tags":["patch"]},{"source":"CVE List","url":"https://codereview.qt-project.org/c/qt/qtbase/+/744448","tags":["patch"]},{"source":"CVE List","url":"https://codereview.qt-project.org/c/qt/qtbase/+/745464","tags":["patch"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-27T06:45:36.400Z","content_hash":"8cfafe5dc572d1827823d9c078f66fa19f7474d6f2188f7fa140b59e9f1c175a"}}