CVE-2026-105946Out-of-bounds read vulnerability in NTLM authentication handling impacts Qt

Beschreibung

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.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Referenzen und Patches

• https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-105946: vendor-advisory
• https://codereview.qt-project.org/c/qt/qtbase/+/745457 patch
• https://codereview.qt-project.org/c/qt/qtbase/+/744448 patch
• https://codereview.qt-project.org/c/qt/qtbase/+/745464 patch