CVE-2026-15037
Low
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.
SeverityLow
CVSS2.9
Exploit probability—
ProductQt
PublishedJul 23, 2026
First seenJul 23, 2026
Weakness typeCWE-91CWE-91
How to fix
Update
- Qt Qt6.12.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Qt Qt | 4.0.0 ≤ v < 6.12.0 | 6.12.0 |
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