CVE-2026-15037: CWE-91 XML injection (aka blind XPath injection) in Qt
CVE-2026-15037 is an XML injection vulnerability in Qt affecting versions from 4.0.0 through 6.11. It arises from improper output neutralization in QDom comment, CDATA, and processing-instruction serialization, allowing untrusted text to inject arbitrary XML markup. The issue is fixed in Qt 6.12. The vulnerability has a low severity score of 2.9 and does not require user interaction for exploitation.
AI Analysis
Technical Summary
This vulnerability involves improper output neutralization (CWE-91) in Qt's XML serialization components (QDom comment, CDATA, and processing-instruction nodes). Specifically, untrusted text serialized into these nodes can inject arbitrary XML markup because node terminators are not escaped under the default InvalidDataPolicy (AcceptInvalidChars). This affects Qt versions from 4.0.0 up to 6.11. The issue is resolved in Qt 6.12.
Potential Impact
An attacker can inject arbitrary XML markup into serialized XML documents when untrusted text is included in QDom comment, CDATA, or processing-instruction nodes. This could lead to malformed XML or unexpected behavior in XML processing. The CVSS score of 2.9 indicates a low impact with no privileges required and no user interaction needed. There are no known exploits in the wild.
Mitigation Recommendations
The vulnerability is fixed in Qt version 6.12. Users should upgrade to Qt 6.12 or later to remediate this issue. No official patch or temporary fix is indicated for earlier versions. Until upgrading, applications should avoid serializing untrusted text into QDom comment, CDATA, or processing-instruction nodes or implement custom escaping to mitigate injection risks.
CVE-2026-15037: CWE-91 XML injection (aka blind XPath injection) in Qt
Description
CVE-2026-15037 is an XML injection vulnerability in Qt affecting versions from 4.0.0 through 6.11. It arises from improper output neutralization in QDom comment, CDATA, and processing-instruction serialization, allowing untrusted text to inject arbitrary XML markup. The issue is fixed in Qt 6.12. The vulnerability has a low severity score of 2.9 and does not require user interaction for exploitation.
CVSS v4.0
Score 2.9low
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper output neutralization (CWE-91) in Qt's XML serialization components (QDom comment, CDATA, and processing-instruction nodes). Specifically, untrusted text serialized into these nodes can inject arbitrary XML markup because node terminators are not escaped under the default InvalidDataPolicy (AcceptInvalidChars). This affects Qt versions from 4.0.0 up to 6.11. The issue is resolved in Qt 6.12.
Potential Impact
An attacker can inject arbitrary XML markup into serialized XML documents when untrusted text is included in QDom comment, CDATA, or processing-instruction nodes. This could lead to malformed XML or unexpected behavior in XML processing. The CVSS score of 2.9 indicates a low impact with no privileges required and no user interaction needed. There are no known exploits in the wild.
Mitigation Recommendations
The vulnerability is fixed in Qt version 6.12. Users should upgrade to Qt 6.12 or later to remediate this issue. No official patch or temporary fix is indicated for earlier versions. Until upgrading, applications should avoid serializing untrusted text into QDom comment, CDATA, or processing-instruction nodes or implement custom escaping to mitigate injection risks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TQtC
- Date Reserved
- 2026-07-08T08:35:17.940Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a620ea19c2644c7f815e025
Added to database: 07/23/2026, 12:52:49 UTC
Last enriched: 07/23/2026, 13:08:12 UTC
Last updated: 07/23/2026, 13:27:09 UTC
Views: 6
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