XPath Injection in Qt

CVE-2026-15037

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.

EPSS: 0.003 (17.9th percentile) — read the EPSS interpretation.

Affected products

  • Qt — versions 4.0.0

Weakness classification (CWE)

References