synced 13 MIN AGO
01 Record

CVE-2026-19248

Unbounded recursion vulnerability in the QDomNode destructor of Qt XML impacts Qt

HighPUBLISHEDCNA: Qt
CNA base score7.1 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/AU:N/R:U/V:D/RE:L
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02 Description

Unbounded recursion vulnerability in the QDomNode destructor of Qt XML impacts Qt

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.42% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 36.1% of scored records. A rank, not a probability.
NVD base score
7.1 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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:N/R:U/V:D/RE:L/U:X
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-09-18.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-09-16 06:37Z1 MO AGO
Last updated
2026-09-16 15:02Z1 MO AGO
Reserved
2026-08-07
Assigning CNA
Qt
Record state
PUBLISHED
Severity
High (CVSS 7.1)
CNA CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/AU:N/R:U/V:D/RE:L
Weaknesses
  • CWE-674Uncontrolled RecursionClass
  • CWE-776Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')Base
Data version
5.2
Document digest
0076e08a7db5f134888da18bcf74cb600bd17d4e87db61540cc8dc38d16d0c19

05 Affected products

VendorProductVersionsPlatforms
qtqt2.2.0 to 6.8.8, 6.9.0 to 6.11.1—

06 References

07 Fixed in

AlmaLinux 9

  • qt5-qtbase
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-common
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-devel
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-examples
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-gui
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-mysql
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-odbc
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-postgresql
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-private-devel
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-static
    Fixed in 5.15.9-11.el9_8.2

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • qt5-qtbase
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-common
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-devel
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-examples
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-gui
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-mysql
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-odbc
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-postgresql
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-private-devel
    Fixed in 5.15.9-11.el9_8.2
  • qt5-qtbase-static
    Fixed in 5.15.9-11.el9_8.2

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • qt6-base
    No fix yet
  • qtbase-opensource-src
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • qt6-base
    No fix yet
  • qtbase-opensource-src
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • qt6-base
    Fixed in 6.11.2+dfsg-5
  • qtbase-opensource-src
    Fixed in 5.15.19+dfsg-5

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • qt6-base
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • qt6-base
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • qt6-base
    No fix yet
  • qtbase-opensource-src
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.10

  • qt6-base
    No fix yet
  • qtbase-opensource-src
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • qtbase-opensource-src
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • qtbase-opensource-src
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • qtbase-opensource-src
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 22.04 LTS

  • qtbase-opensource-src
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 24.04 LTS

  • qtbase-opensource-src
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.