Bug 2529762 (CVE-2026-11573) - CVE-2026-11573 qtbase: qt5-qtbase: qt6-qtbase: qtbase: Denial of Service via uncontrolled recursion in XML serialization
Summary: CVE-2026-11573 qtbase: qt5-qtbase: qt6-qtbase: qtbase: Denial of Service via ...
Keywords:
Status: NEW
Alias: CVE-2026-11573
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2547612 2547613 2547615 2547616
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-08 12:46 UTC by OSIDB Bzimport
Modified: 2026-10-21 15:50 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:84582 0 None None None 2026-10-19 02:40:36 UTC
Red Hat Product Errata RHSA-2026:87082 0 None None None 2026-10-21 15:50:03 UTC

Description OSIDB Bzimport 2026-09-08 12:46:20 UTC 
Uncontrolled recursion in Qt's QDomDocument serialization (QtXml) lets deeply nested untrusted XML crash the app via stack exhaustion (DoS only).
Comment 3 Jon Orris 2026-10-19 02:40:36 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:84582 https://access.redhat.com/errata/RHSA-2026:84582
Comment 4 Jon Orris 2026-10-21 15:50:03 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:87082 https://access.redhat.com/errata/RHSA-2026:87082
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