CVE-2026-15037

qt6-base: Improper output neutralization (XML injection) in QDom comment, CDATA, and processing-instruction serialization in Qt...

CVE-2026-15037 is fixed in qt6-base on 1 platform by DEBIAN-CVE-2026-15037 (version 6.11.2+dfsg-6), released July 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

n/a

No vendor severity

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0044

38th percentile

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.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
qt6-base · Debian 14	6.11.2+dfsg-6	DEBIAN-CVE-2026-15037	Jul 23, 2026

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