RLSA-2026:98103: Important: qt5-qtbase security update
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 crafted XML parsing in QXmlStreamReader (CVE-2026-16762)
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
rocky-linux/qt5-qtbaseto a version that resolves this vulnerability.Fixed in 0:5.15.3-11.el8_10
Event History
Frequently Asked Questions
What does an attacker need to exploit this issue?
The issue can be triggered through crafted XML parsed by QXmlStreamReader. The CVSS vector indicates network access, low attack complexity, no privileges, and no user interaction are required.
What is the likely impact of successful exploitation?
Successful exploitation can cause a denial of service. The supplied CVSS vector indicates high availability impact and no confidentiality or integrity impact.
Which Rocky Linux software is affected by this advisory?
The advisory applies to Rocky Linux qt5-qtbase packages, which provide Qt base functionality including string, XML, and network handling tools.