CVE-2026-105946

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.

CVSS

No CVSS.

References

Link	Resource
https://codereview.qt-project.org/c/qt/qtbase/+/744448
https://codereview.qt-project.org/c/qt/qtbase/+/745457
https://codereview.qt-project.org/c/qt/qtbase/+/745464
https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-105946:

Configurations

No configuration.

History

27 Oct 2026, 07:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-27 07:16

Updated : 2026-10-27 15:03

NVD link : CVE-2026-105946

Mitre link : CVE-2026-105946

CVE.ORG link : CVE-2026-105946

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

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