Vulnerability in qt

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund21 Oct 2026WID-SEC-2026-4098

  QT: Vulnerability allows denial of service Translated from German

  CVE-2026-96432

[ References ]References

• codereview.qt-project.org/c/qt/qtbase/+/759718
• wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products