جزئیات آسیب‌پذیری

An attacker able to supply a crafted XML document to an application using QXmlStreamReader can cause disproportionate CPU consumption during parsing, making the application unresponsive (denial of service). Exploitation requires only that the application parse attacker-influenced XML; no authentication, privileges, or user interaction beyond ingesting the input are needed. There is no loss of confidentiality or integrity — no data disclosure, data modification, or code execution — and the impact is contained to the affected process.

• https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-16762: vendor-advisory
• https://codereview.qt-project.org/c/qt/qtbase/+/738885 patch
• https://codereview.qt-project.org/c/qt/qtbase/+/738901 patch