CVE-2026-105946
Severity not reportedOut-of-bounds read in the QAuthenticator NTLM authentication handling in the Qt Network module in Qt Group Qt allows remote attackers to obtain sensitive infor…
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.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://codereview.qt-project.org/c/qt/qtbase/+/744448 a59d8014-47c4-4630-ab43-e1b13cbe58e3
- https://codereview.qt-project.org/c/qt/qtbase/+/745457 a59d8014-47c4-4630-ab43-e1b13cbe58e3
- https://codereview.qt-project.org/c/qt/qtbase/+/745464 a59d8014-47c4-4630-ab43-e1b13cbe58e3
- https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-105946: a59d8014-47c4-4630-ab43-e1b13cbe58e3
