Amazon Linux 2 (EOS) Security Advisory: ALAS2-2026-3951
Advisory Released Date: 2026-09-28
Advisory Updated Date: 2026-09-28
Severity:
Important
Issue Overview:
Uncontrolled recursion in Qt's QDomDocument serialization (QtXml) lets deeply nested untrusted XML crash the app via stack exhaustion (DoS only). (CVE-2026-11573)
QDomDocument XML parsing is vulnerable to a remotely-triggerable denial-of-service crash when processing untrusted input. (CVE-2026-19248)
Affected Packages:
qt5-qtbase
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update qt5-qtbase or yum update --advisory ALAS2-2026-3951 to update your system.
New Packages:
aarch64:
qt5-qtbase-5.15.3-1.amzn2.0.3.aarch64
qt5-qtbase-devel-5.15.3-1.amzn2.0.3.aarch64
qt5-qtbase-private-devel-5.15.3-1.amzn2.0.3.aarch64
qt5-qtbase-examples-5.15.3-1.amzn2.0.3.aarch64
qt5-qtbase-static-5.15.3-1.amzn2.0.3.aarch64
qt5-qtbase-mysql-5.15.3-1.amzn2.0.3.aarch64
qt5-qtbase-odbc-5.15.3-1.amzn2.0.3.aarch64
qt5-qtbase-postgresql-5.15.3-1.amzn2.0.3.aarch64
qt5-qtbase-gui-5.15.3-1.amzn2.0.3.aarch64
qt5-qtbase-debuginfo-5.15.3-1.amzn2.0.3.aarch64
i686:
qt5-qtbase-5.15.3-1.amzn2.0.3.i686
qt5-qtbase-devel-5.15.3-1.amzn2.0.3.i686
qt5-qtbase-private-devel-5.15.3-1.amzn2.0.3.i686
qt5-qtbase-examples-5.15.3-1.amzn2.0.3.i686
qt5-qtbase-static-5.15.3-1.amzn2.0.3.i686
qt5-qtbase-mysql-5.15.3-1.amzn2.0.3.i686
qt5-qtbase-odbc-5.15.3-1.amzn2.0.3.i686
qt5-qtbase-postgresql-5.15.3-1.amzn2.0.3.i686
qt5-qtbase-gui-5.15.3-1.amzn2.0.3.i686
qt5-qtbase-debuginfo-5.15.3-1.amzn2.0.3.i686
noarch:
qt5-qtbase-common-5.15.3-1.amzn2.0.3.noarch
src:
qt5-qtbase-5.15.3-1.amzn2.0.3.src
x86_64:
qt5-qtbase-5.15.3-1.amzn2.0.3.x86_64
qt5-qtbase-devel-5.15.3-1.amzn2.0.3.x86_64
qt5-qtbase-private-devel-5.15.3-1.amzn2.0.3.x86_64
qt5-qtbase-examples-5.15.3-1.amzn2.0.3.x86_64
qt5-qtbase-static-5.15.3-1.amzn2.0.3.x86_64
qt5-qtbase-mysql-5.15.3-1.amzn2.0.3.x86_64
qt5-qtbase-odbc-5.15.3-1.amzn2.0.3.x86_64
qt5-qtbase-postgresql-5.15.3-1.amzn2.0.3.x86_64
qt5-qtbase-gui-5.15.3-1.amzn2.0.3.x86_64
qt5-qtbase-debuginfo-5.15.3-1.amzn2.0.3.x86_64