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CVE-2026-15037

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

LOW

2.9

CVSS Score

Published: July 23, 2026 at 12:33 PM UTC

Updated: July 23, 2026 at 09:13 PM UTC

1 product affected across 1 vendorQt

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Severity

LOW2.9

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

95%

4.0.0 ≤ v < 6.12.04.0.0

Affected range stops below 6.12.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

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

References (1)

Patch

Source: cverecord

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2.9LOWTQtC

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-91

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