RHSA-2026:95575: Important: qt5-qtbase security update

Published Nov 5, 2026
·
Updated

Important: qt5-qtbase security update

Other sources

Qt is a software toolkit for developing applications. The qt5-base packages contain base tools for string, xml, and network handling in Qt. Security Fix(es): qtbase: qt5-qtbase: qt6-qtbase: qtbase: Denial of Service via uncontrolled recursion in XML serialization (CVE-2026-11573) qt5-qtbase: qt6-qtbase: Qt: Denial of Service vulnerability in XML parsing (CVE-2026-19248) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

— Red Hat

Affected Software

90 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux Server - AUS
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
redhat/qt5-qtbase<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-common<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-debugsource<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-debugsource<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-devel<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-devel<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-devel-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-devel-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-examples<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-examples<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-examples-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-examples-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-gui<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-gui<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-gui-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-gui-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-mysql<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-mysql<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-mysql-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-mysql-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-odbc<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-odbc<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-odbc-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-odbc-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-postgresql<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-postgresql<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-postgresql-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-postgresql-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-private-devel<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-private-devel<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-tests-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-tests-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-debugsource<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-devel<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-devel-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-examples<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-examples-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-gui<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-gui-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-mysql<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-mysql-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-odbc<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-odbc-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-postgresql<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-postgresql-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-private-devel<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-tests-debuginfo<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-debuginfo<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-debugsource<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-devel<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-devel-debuginfo<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-examples<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-examples-debuginfo<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-gui<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-gui-debuginfo<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-mysql<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-mysql-debuginfo<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-odbc<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-odbc-debuginfo<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-postgresql<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-postgresql-debuginfo<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-private-devel<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-tests-debuginfo<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa
redhat/qt5-qtbase-static<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-static<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-static<5.15.9-11.el9_6.2
5.15.9-11.el9_6.2
redhat/qt5-qtbase-static<5.15.9-11.el9_6.2.aa
5.15.9-11.el9_6.2.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/qt5-qtbase to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  2. Upgrade

    Upgrade redhat/qt5-qtbase-common to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  3. Upgrade

    Upgrade redhat/qt5-qtbase-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  4. Upgrade

    Upgrade redhat/qt5-qtbase-debugsource to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  5. Upgrade

    Upgrade redhat/qt5-qtbase-devel to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  6. Upgrade

    Upgrade redhat/qt5-qtbase-devel-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  7. Upgrade

    Upgrade redhat/qt5-qtbase-examples to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  8. Upgrade

    Upgrade redhat/qt5-qtbase-examples-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  9. Upgrade

    Upgrade redhat/qt5-qtbase-gui to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  10. Upgrade

    Upgrade redhat/qt5-qtbase-gui-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  11. Upgrade

    Upgrade redhat/qt5-qtbase-mysql to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  12. Upgrade

    Upgrade redhat/qt5-qtbase-mysql-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  13. Upgrade

    Upgrade redhat/qt5-qtbase-odbc to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  14. Upgrade

    Upgrade redhat/qt5-qtbase-odbc-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  15. Upgrade

    Upgrade redhat/qt5-qtbase-postgresql to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  16. Upgrade

    Upgrade redhat/qt5-qtbase-postgresql-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  17. Upgrade

    Upgrade redhat/qt5-qtbase-private-devel to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  18. Upgrade

    Upgrade redhat/qt5-qtbase-tests-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  19. Upgrade

    Upgrade redhat/qt5-qtbase to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  20. Upgrade

    Upgrade redhat/qt5-qtbase-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  21. Upgrade

    Upgrade redhat/qt5-qtbase-debugsource to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  22. Upgrade

    Upgrade redhat/qt5-qtbase-devel to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  23. Upgrade

    Upgrade redhat/qt5-qtbase-devel-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  24. Upgrade

    Upgrade redhat/qt5-qtbase-examples to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  25. Upgrade

    Upgrade redhat/qt5-qtbase-examples-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  26. Upgrade

    Upgrade redhat/qt5-qtbase-gui to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  27. Upgrade

    Upgrade redhat/qt5-qtbase-gui-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  28. Upgrade

    Upgrade redhat/qt5-qtbase-mysql to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  29. Upgrade

    Upgrade redhat/qt5-qtbase-mysql-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  30. Upgrade

    Upgrade redhat/qt5-qtbase-odbc to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  31. Upgrade

    Upgrade redhat/qt5-qtbase-odbc-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  32. Upgrade

    Upgrade redhat/qt5-qtbase-postgresql to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  33. Upgrade

    Upgrade redhat/qt5-qtbase-postgresql-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  34. Upgrade

    Upgrade redhat/qt5-qtbase-private-devel to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  35. Upgrade

    Upgrade redhat/qt5-qtbase-tests-debuginfo to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa
  36. Upgrade

    Upgrade redhat/qt5-qtbase-static to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2
  37. Upgrade

    Upgrade redhat/qt5-qtbase-static to a version that resolves this vulnerability.

    Fixed in 5.15.9-11.el9_6.2.aa

Event History

Nov 5, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·02:36 PM
Data Sourced
via Red Hat·02:36 PM
Severity

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