RHSA-2026:65897 — Security Advisory
Red Hat Security Advisory: qt5-qtbase security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · September 9, 2026
Updated · October 2, 2026
Topic
An update for qt5-qtbase is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
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.