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TI-2026-12657 Aliases CVE-2026-15037GHSA-7xx4-xq65-r6v3

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

Priority LOW 15CWE-91Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Partial Red Hat: 1 fixed, 1 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00444 38th percentileScored 2026-11-07
Fix Partial Qt (Qt): 6.12.0Red Hat: 1 advisoryRed Hat: 1 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
qtQt4.0.0 to before 6.12.06.12.0Patch availableCNA
  • Qt Vendorqt Affected 4.0.0 to before 6.12.0 Fixed in 6.12.0 Patch available CNA

Remediation

  • Fix · CNA Qt (Qt) Fixed in 6.12.0

Red Hat 1 advisory

  • RHSA-2026:82382 Released 2026-10-13 · Red Hat rating Important
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images qt6-qtbase-6.11.2-3.1.hum1@aarch64, qt6-qtbase-6.11.2-3.1.hum1@s390x, qt6-qtbase-6.11.2-3.1.hum1@src +31

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Hardened ImagesAffectedNo fix yet
Red Hat Hardened ImagesFixed RHSA-2026:82382

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-15037
  2. 2026-10-03 Alias added: GHSA-7xx4-xq65-r6v3
  3. 2026-10-14 Fix available: RHSA-2026:82382 · Red Hat
  4. 2026-10-15 Fix available: Red Hat Hardened Images · Red Hat

References

Patch 1

  • TI-2024-23902 QAbstractOAuth in Qt Network Authorization in Qt before 5.15.17, 6.x before 6.2.13, 6.3.x… CVSS 3.1CRITICAL 9.8
  • TI-2022-21359 Heap-based buffer overflow in Qt CVSS 3.1HIGH 8.8
  • TI-2022-19524 Integer overflow in Qt CVSS 3.1HIGH 8.8
  • TI-2023-18997 In Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.2, there can… CVSS 3.1HIGH 7.5
  • TI-2021-09305 Integer Overflow vulnerability in qsvghandler.cpp in Qt qtsvg versions 5.15.1, 6.0.0… CVSS 3.1MEDIUM 5.5
  • TI-2023-28356 An issue was discovered in the HTTP2 implementation in Qt before 5.15.17, 6.x before… CVSS 3.1CRITICAL 9.8
See all 106 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences