CVE-2026-15037

XML injection vulnerability in QDom comment, CDATA and processing-instruction serialization

State: Published
Severity: 2.9 Low
Published: Jul 23, 2026
Updated: Jul 23, 2026
Reserved: Jul 8, 2026

Description

Improper output neutralization (XML injection) in QDom comment, CDATA, and processing-instruction serialization in Qt XML from 4.0.0 through 6.11 allows untrusted text serialized by an application into those nodes to inject arbitrary XML markup, because the node terminators are not escaped under the default InvalidDataPolicy (AcceptInvalidChars). Fixed in Qt 6.12.

Scores

CVSS	Score	Vector	Source
4.0	2.9 Low	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P	TQtC

Weaknesses

CWE-91 XML injection (aka blind XPath injection)

Affected Products

Product	Versions
QtQt	4.0.0 to before 6.12.0Affected

References

https://codereview.qt-project.org/c/qt/qtbase/+/748323patch

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