RHSA-2026:72377HighCVSS 7.5

Red Hat Security Advisory: qt5-qtbase security update

Published
September 28, 2026
Last Modified
September 28, 2026

🔗 CVE IDs covered (1)

CVE-2026-9499 →

📋 Description

CVE-2026-9499 — qt: Qt: Denial of Service via out-of-bounds read in text codec handling

🎯 Affected products125

  • Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-0:5.15.2-5.el8_6.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-0:5.15.2-5.el8_6.1.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • qt5-qtbase-0:5.15.2-5.el8_6.1.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-0:5.15.2-5.el8_6.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-0:5.15.2-5.el8_6.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-0:5.15.2-5.el8_6.1.src as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • qt5-qtbase-0:5.15.2-5.el8_6.1.src as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-0:5.15.2-5.el8_6.1.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • qt5-qtbase-0:5.15.2-5.el8_6.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-common-0:5.15.2-5.el8_6.1.noarch as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • qt5-qtbase-common-0:5.15.2-5.el8_6.1.noarch as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-debuginfo-0:5.15.2-5.el8_6.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-debuginfo-0:5.15.2-5.el8_6.1.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • qt5-qtbase-debuginfo-0:5.15.2-5.el8_6.1.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-debuginfo-0:5.15.2-5.el8_6.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-debuginfo-0:5.15.2-5.el8_6.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-debuginfo-0:5.15.2-5.el8_6.1.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • qt5-qtbase-debuginfo-0:5.15.2-5.el8_6.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-debugsource-0:5.15.2-5.el8_6.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-debugsource-0:5.15.2-5.el8_6.1.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • qt5-qtbase-debugsource-0:5.15.2-5.el8_6.1.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-debugsource-0:5.15.2-5.el8_6.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-debugsource-0:5.15.2-5.el8_6.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-debugsource-0:5.15.2-5.el8_6.1.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • qt5-qtbase-debugsource-0:5.15.2-5.el8_6.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-devel-0:5.15.2-5.el8_6.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • qt5-qtbase-devel-0:5.15.2-5.el8_6.1.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • qt5-qtbase-devel-0:5.15.2-5.el8_6.1.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • +95 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

🔗 References (4)