CVE-2026-96432Null pointer dereference vulnerability in QNetworkAccessManager impacts Qt

Description

A malicious or compromised HTTP/2 server withholding SETTINGS ACK can send RST_STREAM on a completed stream, planting a null pointer, and then send a PUSH_PROMISE for that stream, causing a null pointer dereference in the QNetworkAccessManager class of the Qt Network module that crashes the application.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-96432: vendor-advisory
• https://codereview.qt-project.org/c/qt/qtbase/+/759718 patch