{"schemaVersion":3,"id":"CVE-2026-11573","aliases":["RHSA-2026:74653","UBUNTU-CVE-2026-11573","DEBIAN-CVE-2026-11573","RHSA-2026:84582"],"status":"published","duplicateOf":null,"title":null,"description":"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&). 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