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VULNERABILITIES

CVE-2026-105946 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://codereview.qt-project.org/c/qt/qtbase/+/744448 TQtC
https://codereview.qt-project.org/c/qt/qtbase/+/745457 TQtC
https://codereview.qt-project.org/c/qt/qtbase/+/745464 TQtC
https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-105946: TQtC

Weakness Enumeration

CWE-IDCWE NameSource
CWE-125Out-of-bounds ReadTQtC

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-105946
NVD Published Date:
Oct 27, 2026
NVD Last Modified:
Nov 4, 2026
Source:
TQtC
CVE-2026-105946 Details - Not Deferred