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Fencer Vulns
low 2.9

CVE-2026-15037 json

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

published 2026-07-23 3 mo ago modified 2026-07-23 3 mo ago also EUVD-2026-48254

cvss
2.9
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits
0
none known

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.

Patch / fix

  • Qt Qt 6.12.0
  • qt6-base Debian 14 6.11.2+dfsg-6

debian advisories DEBIAN-CVE-2026-15037

  • qt6-qtbase hummingbird 1 6.11.2-3.1.hum1
  • qt6-qtbase-gui hummingbird 1 6.11.2-3.1.hum1
  • qt6-qtbase-odbc hummingbird 1 6.11.2-3.1.hum1
  • qt6-qtbase-ibase hummingbird 1 6.11.2-3.1.hum1
  • qt6-qtbase-mysql hummingbird 1 6.11.2-3.1.hum1
  • qt6-qtbase-common hummingbird 1 6.11.2-3.1.hum1
  • qt6-qtbase-examples hummingbird 1 6.11.2-3.1.hum1
  • qt6-qtbase-postgresql hummingbird 1 6.11.2-3.1.hum1

red hat advisories RHSA-2026:82382

  • qtbase Azure Linux 3.0 6.6.3-5

azure linux advisories AZL-94116

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-15037 updated cvss 5.3

qt: Qt XML: XML injection via improper output neutralization in QDom serialization.

  • Red Hat Hardened Images qt6 6.11.1-2.hum1, qt5 5.15.18-3.hum1
    affected: no fix available
  • Red Hat Hardened Images qt6-qtbase 6.11.2-3.1.hum1, qt6-qtbase-gui 6.11.2-3.1.hum1, qt6-qtbase-odbc 6.11.2-3.1.hum1, qt6-qtbase-ibase 6.11.2-3.1.hum1, qt6-qtbase-mysql 6.11.2-3.1.hum1, qt6-qtbase-common 6.11.2-3.1.hum1, +2 more
    fixed: vendor fix RHSA-2026:82382

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
3 mo ago

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 2.9 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
CNA 4.0 2.9 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • Qt Qt

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.