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Qt5-Qtbase Security Update — AlmaLinux 8 (ALSA-2026:93924)

ALSA-2026:93924 updates qt5-qtbase on AlmaLinux 8, fixing CVE-2026-11573 and CVE-2026-19248 in the Qt base libraries (string, XML and network handling). Update with dnf update qt5-qtbase and restart applications linking Qt.

High 7.1 CVSS
AlmaLinux 8

What this means under a SharedLicense license

qtbase contains the string, XML and network primitives every Qt application uses — flaws there are reachable from any input those applications process.

Type:

security

Severity:

important

Release date:

2026-11-03

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):

* qtbase: qt5-qtbase: qt6-qtbase: qtbase: Denial of Service via uncontrolled recursion in XML serialization (CVE-2026-11573)
* qt5-qtbase: qt6-qtbase: Qt: Denial of Service vulnerability in XML parsing (CVE-2026-19248)

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.

References:

Updated packages listed below:

Architecture Package Checksum
aarch64 qt5-qtbase-mysql-5.15.3-10.el8_10.aarch64.rpm 2b7002a7f4a5c45ab8753294b1ebf628a63e60c0efe7f651e8447d95acead55f
aarch64 qt5-qtbase-gui-5.15.3-10.el8_10.aarch64.rpm 34c28fe2a89afc6fafe7638569aa842c1754e08dbc30893bd9748e68cbd4a720
aarch64 qt5-qtbase-private-devel-5.15.3-10.el8_10.aarch64.rpm 69b850b5644005d07b6218b1fa5d3fccc1805ac293cdcaf04b8677f626e76f52
aarch64 qt5-qtbase-devel-5.15.3-10.el8_10.aarch64.rpm 75803523016a4b6b1c1238b832c5d892041018e372be0787fb95160b61304e88
aarch64 qt5-qtbase-odbc-5.15.3-10.el8_10.aarch64.rpm 7737129980cca7c85c176ca4571051ea53e34d41e43b04a15c9a167fc61ceb5c
aarch64 qt5-qtbase-postgresql-5.15.3-10.el8_10.aarch64.rpm 7e3a459efc339ca4eb98e8979bbfd03e8c6209edd3d0e7b6ae33bf6865c357d9
aarch64 qt5-qtbase-5.15.3-10.el8_10.aarch64.rpm 7fd32abaae47e5a303f829b946b43dfae6d9a1bfa0591cf1d8090f95174e83d1
aarch64 qt5-qtbase-examples-5.15.3-10.el8_10.aarch64.rpm b936051de6df1d13994e32e2ac9af2a7990dd1f46b4091c01ac7269f5912aeed
aarch64 qt5-qtbase-static-5.15.3-10.el8_10.aarch64.rpm dc597672b58a817c1edcf8fc51668442fb92170d2a09b69f5fcb691b4114bb0e
i686 qt5-qtbase-mysql-5.15.3-10.el8_10.i686.rpm 044024638ece43a54227757d5c772afde2453735a95eb583c9ebe7140378da22
i686 qt5-qtbase-examples-5.15.3-10.el8_10.i686.rpm 246ba28232b352e2022d902d1a5754365426486c119ef740d1ce99cd2f2d426c
i686 qt5-qtbase-gui-5.15.3-10.el8_10.i686.rpm 34e7ce87b48aae2e476f1cb72872ecd3dc46bbd096fea1dfa6c60379525cfdd0
i686 qt5-qtbase-5.15.3-10.el8_10.i686.rpm 4b7e2136103e502ca15953533422e8eb9b3ed2c71a74ca8d6f8441d350208478
i686 qt5-qtbase-static-5.15.3-10.el8_10.i686.rpm 72a755515fedd2e248ef1ba565b06199c945e56c7face7a14262b91113973d35
i686 qt5-qtbase-odbc-5.15.3-10.el8_10.i686.rpm 800a100782f868c50649cdf17d16dfc49a3df272223c50a80f71e2c175c3d385
i686 qt5-qtbase-postgresql-5.15.3-10.el8_10.i686.rpm 82ed23fe195aa83570967b50515caa8c087f6b0843bfe02929e85577960bc156
i686 qt5-qtbase-devel-5.15.3-10.el8_10.i686.rpm aa17026d9c58a8e04a6396813f62a6927c63cf6032c1391488163ab40d7338a8
i686 qt5-qtbase-private-devel-5.15.3-10.el8_10.i686.rpm b4241ae87c7d32ff589d01f44ed4bd1eac7cb2f3dc6437e4a98e62f57e0a11fb
noarch qt5-qtbase-common-5.15.3-10.el8_10.noarch.rpm 805d58b0e36070d8482b286ef828182c085169feb5b53351ebc833ecc729ccd8
ppc64le qt5-qtbase-gui-5.15.3-10.el8_10.ppc64le.rpm 2a8838e7001e40dd0a5548b18e4cbc05e42e37c1bc6420ec4724c31dc07f0634
ppc64le qt5-qtbase-mysql-5.15.3-10.el8_10.ppc64le.rpm 4b9a8f003a32020effae0ad1033ff482085d50f2820beed8998f198683733f9b
ppc64le qt5-qtbase-postgresql-5.15.3-10.el8_10.ppc64le.rpm 64ce17d4e9a695003eeb3a7e97936dd70f45c4bc4da467c007eaea384fea03a1
ppc64le qt5-qtbase-odbc-5.15.3-10.el8_10.ppc64le.rpm 7e55331b8ad15b8d206881218dba87dade38099c832e4a589bb7e93ab1561cad
ppc64le qt5-qtbase-static-5.15.3-10.el8_10.ppc64le.rpm c6e893844f42b30e612dd1d630d307727dde7be452e00ec169cd4c934b3df55e
ppc64le qt5-qtbase-private-devel-5.15.3-10.el8_10.ppc64le.rpm c8e53995bbf3b6711ac879ed87724bd650db4965f083462053ae26bbb3dac2cb
ppc64le qt5-qtbase-examples-5.15.3-10.el8_10.ppc64le.rpm e965fa5d870aa5923395ea186008a9c39d71849891277aa8c1edb735424a75ab
ppc64le qt5-qtbase-5.15.3-10.el8_10.ppc64le.rpm f4172ea76fed9325e96a6792861c0da26933edd838e84021e99d0d41063736e8
ppc64le qt5-qtbase-devel-5.15.3-10.el8_10.ppc64le.rpm f7f7845f96a9077f648be08aa20bc31006ad71ed027fa2558c368960fa6bf225
s390x qt5-qtbase-examples-5.15.3-10.el8_10.s390x.rpm 42d31c5e42e91ff876085c1d4a7441b2509cf35d2c3752fd584bfeb2bb4dd83f
s390x qt5-qtbase-mysql-5.15.3-10.el8_10.s390x.rpm 4eaebcb3d9a092b008e550cd189ffe42a6dd27b32b9ca976f4d8f9a838386012
s390x qt5-qtbase-static-5.15.3-10.el8_10.s390x.rpm 7d18976c6dbf4d44189dafb7733937f0b99fef0b31f5b2c4850b50925377654e
s390x qt5-qtbase-odbc-5.15.3-10.el8_10.s390x.rpm 7f72432eb92e02c042d4591b5015a6f25039badf8a2f56b59bf10e137fb9bef3
s390x qt5-qtbase-gui-5.15.3-10.el8_10.s390x.rpm 944154745233bed0b2e62a6757ae5d18045ede9cb9a2f95b524edb6342df4f98
s390x qt5-qtbase-postgresql-5.15.3-10.el8_10.s390x.rpm 9ce759e57ee66ae732e3e692e091d4449687f072d71b814996f186a03eff6622
s390x qt5-qtbase-private-devel-5.15.3-10.el8_10.s390x.rpm b01802401bb32ea1c385282c0bc8d3a44e57a1ef4e8b5f680df6c6453c2b6aa4
s390x qt5-qtbase-devel-5.15.3-10.el8_10.s390x.rpm b42506131b779b199ad60c53d5f26d70bd1a79022ad02ffb9a3e031b9297296e
s390x qt5-qtbase-5.15.3-10.el8_10.s390x.rpm d07fbdece803cd4fd2fa83f8a138df333c9cedb262e206a34be45585231c4f19
x86_64 qt5-qtbase-gui-5.15.3-10.el8_10.x86_64.rpm 05bf7f6edf69ad12c712b6ecd028f0c7d1a8a2ec643ec05fd5423a0859f204c5
x86_64 qt5-qtbase-examples-5.15.3-10.el8_10.x86_64.rpm 1b47b2bbb190212e242a4872c6f5257fa5055091bdbbafa7a539ca305bec34df
x86_64 qt5-qtbase-static-5.15.3-10.el8_10.x86_64.rpm 2a88e605db169362be1950563ae18d1f6d5e8b3754ee19a537093c37dad34b4c
x86_64 qt5-qtbase-odbc-5.15.3-10.el8_10.x86_64.rpm 4eeda2208f03cd04a50dda36aa57727326eeb7efbb1085e93235540902f54311
x86_64 qt5-qtbase-mysql-5.15.3-10.el8_10.x86_64.rpm 5d85cc8b2da078d8e869fc05da2173f26fb340645b20499b2c67f7459f6e4eed
x86_64 qt5-qtbase-postgresql-5.15.3-10.el8_10.x86_64.rpm 638ae8cc8bc39a7c1c81bc98b0bc8e3c9f80e4239a773d0949c76635bf1db2e1
x86_64 qt5-qtbase-5.15.3-10.el8_10.x86_64.rpm 8eefa8d18603d759ee4c4b2dfc42653870fd4618fe9521487ca658e7de43f22c
x86_64 qt5-qtbase-private-devel-5.15.3-10.el8_10.x86_64.rpm a16969ef9d03141512d1ccc316af6573e14d9dc232be1627e307fc6beda744c8
x86_64 qt5-qtbase-devel-5.15.3-10.el8_10.x86_64.rpm b2871bb980db6e36367f7d2dc70c8d6044f63c89b9b613118d45c4e21d3e0207

Notes:

This page is generated automatically from Red Hat security data and has not been checked for errors. For clarification or corrections please contact the AlmaLinux Packaging Team.

Frequently Asked Questions

What is ALSA-2026:93924?
It is AlmaLinux's qt5-qtbase erratum, fixing CVE-2026-11573 and CVE-2026-19248 in the Qt base libraries.
Who is affected?
AlmaLinux 8 systems with Qt5 applications installed — GUI tools and any server-side software linking qt5-base.
How do I apply the fix?
Run dnf update qt5-qtbase and restart the Qt applications so they reload the patched libraries.
Do hosting servers need Qt?
Rarely — most headless servers only have it if a management or GUI tool pulled it in. If installed, update it; if unused, removing it eliminates the surface.

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