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OpenAdvisories
High RLSA-2026:65993 1 CVE

Important: qt5-qtbase security update

Published Sep 10, 2026 · Updated Sep 10, 2026

Summary

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):

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

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.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 9 qt5-qtbase 0:5.15.9-11.el9_8.1

Vulnerabilities 1

  • Medium 6.3

    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…

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2503641
  • advisory
    https://access.redhat.com/errata/RHSA-2026:65993