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OpenAdvisories
Medium RHSA-2026:65816 1 CVE

Red Hat Security Advisory: qt6-qt5compat security update

Published Sep 9, 2026 · Updated Oct 2, 2026

Ecosystem: Red Hat

Fixed packages 7

ReleasePackageFixed in
Red Hat · RHEL 10 enterprise_linux:10.2 qt6-qt5compat 0:6.10.1-1.el10_2.1
Red Hat · RHEL 10 enterprise_linux:10.2 qt6-qt5compat-debuginfo 0:6.10.1-1.el10_2.1
Red Hat · RHEL 10 enterprise_linux:10.2 qt6-qt5compat-debugsource 0:6.10.1-1.el10_2.1
Red Hat · RHEL 10 enterprise_linux:10.2 qt6-qt5compat-devel 0:6.10.1-1.el10_2.1
Red Hat · RHEL 10 enterprise_linux:10.2 qt6-qt5compat-examples 0:6.10.1-1.el10_2.1
Red Hat · RHEL 10 enterprise_linux:10.2 qt6-qt5compat-examples-debuginfo 0:6.10.1-1.el10_2.1
Red Hat · RHEL 10 enterprise_linux:10.2 qt6-qt5compat-tests-debuginfo 0:6.10.1-1.el10_2.1

Vulnerabilities 1

  • Medium 6.3
    CVE-2026-9499

    Out-of-bounds read in QTextCodec::codecForName() in Qt

    An out-of-bounds read (buffer over-read) vulnerability exists in QTextCodec::codecForName() in Qt. When the function is called with a QByteArray that is not NUL-terminated (for example, one created with QByteArray::fromRawData()), the codec-name matching rout…

    Qt Project Qt qtbase-opensource-src qtbase-opensource-src Debian Ubuntu

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2503641
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_65816.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-9499
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-9499
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-9499
  • article
    https://codereview.qt-project.org/c/qt/qt5compat/+/723911
  • article
    https://codereview.qt-project.org/c/qt/qt5compat/+/724348
  • article
    https://codereview.qt-project.org/c/qt/qt5compat/+/724995
  • article
    https://codereview.qt-project.org/c/qt/tqtc-qt5compat/+/725112