CVE-2026-11573

Uncontrolled recursion (CWE-674) in the QDomDocument/QDomNode serialization path of the Qt XML module (QtXml, qtbase). QDomElementPrivate::save() and QDomNodePrivate::save() recurse mutually, consuming one stack frame per level of element nesting with no depth limit, no configurable bound and no error return. A document with deeply nested elements parses successfully but exhausts the call stack and terminates the process when serialized. Reachable via QDomDocument::toByteArray() (Qt 4.0 and later), QDomDocument::toString(), QDomDocument::toCString(), QDomNode::save(), and operator<<(QTextStream&, const QDomNode&). Denial of service only — no code execution and no memory disclosure.

CVSS

No CVSS.

References

Link	Resource
https://codereview.qt-project.org/c/qt/qtbase/+/606899

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-08 13:17

Updated : 2026-09-11 10:16

NVD link : CVE-2026-11573

Mitre link : CVE-2026-11573

CVE.ORG link : CVE-2026-11573

JSON object : View

Products Affected

No product.

CWE

CWE-674

Uncontrolled Recursion

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