CVE-2026-16762
CVE-2026-16762 · Denial-of-service vulnerability in the Qt Core QXmlStream parser (QXmlStreamReader) impacts Qt
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 8.7 · High · EPSS 0.4% · Fix available
- Published
- Updated
Affected products and versions
qt
- Versions
- ≥ 0, < 4.3.0: Unknown (python)
- ≥ 4.3.0, < 6.8.9: Affected (python)
- ≥ 6.9.0, < 6.11.2: Affected (python)
Update to 6.11.2; Update to 6.8.9