What’s Vulnerable › Vulnerabilities
CVE-2026-15037: XML injection vulnerability in QDom comment, CDATA and processing-instruction serialization
- Severity: low (CVSS 2.9 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-23 · updated 2026-07-23
- Weakness: CWE-91
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.
Affected products
- Qt: from 4.0.0 before 6.12.0 — fixed in 6.12.0
How to fix
Upgrade to a fixed version: Qt 6.12.0. Check the vendor advisory for mitigations.
References
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