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RLSA-2026:11352

Security Mirrored from RHSA-2026:11352
Issued at: 2026-05-01
Updated at: 2026-05-15

Advisory content derived from Red Hat RHSA-2026:11352, © Red Hat, Inc., used under CC BY 4.0, with modifications.

Synopsis

Important: xorg-x11-server-Xwayland security update



Description

Xwayland is an X server for running X clients under Wayland.

Security Fix(es):

* xorg: xwayland: X.Org X server: Denial of Service via integer underflow in XKB compatibility map handling (CVE-2026-33999)

* xorg: xwayland: X.Org X server: Use-after-free vulnerability leads to server crash and potential memory corruption (CVE-2026-34001)

* xorg: xwayland: X.Org X server: Information exposure and denial of service via out-of-bounds memory access (CVE-2026-34003)

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 products

Rocky Linux 10 aarch64 Rocky Linux 10 ppc64le Rocky Linux 10 s390x Rocky Linux 10 x86_64

Fixes

2451106 2451109 2451113

CVEs

CVE-2026-33999 CVE-2026-34001 CVE-2026-34003

Affected packages

Rocky Linux 10 aarch64 - AppStream

xorg-x11-server-Xwayland-0:24.1.5-6.el10_1.aarch64.rpm xorg-x11-server-Xwayland-debugsource-0:24.1.5-6.el10_1.aarch64.rpm xorg-x11-server-Xwayland-0:24.1.5-6.el10_1.src.rpm xorg-x11-server-Xwayland-debuginfo-0:24.1.5-6.el10_1.aarch64.rpm

Rocky Linux 10 ppc64le - AppStream

xorg-x11-server-Xwayland-debuginfo-0:24.1.5-6.el10_1.ppc64le.rpm xorg-x11-server-Xwayland-0:24.1.5-6.el10_1.src.rpm xorg-x11-server-Xwayland-0:24.1.5-6.el10_1.ppc64le.rpm xorg-x11-server-Xwayland-debugsource-0:24.1.5-6.el10_1.ppc64le.rpm

Rocky Linux 10 x86_64 - AppStream

xorg-x11-server-Xwayland-debugsource-0:24.1.5-6.el10_1.x86_64.rpm xorg-x11-server-Xwayland-0:24.1.5-6.el10_1.src.rpm xorg-x11-server-Xwayland-debuginfo-0:24.1.5-6.el10_1.x86_64.rpm xorg-x11-server-Xwayland-0:24.1.5-6.el10_1.x86_64.rpm

Rocky Linux 10 s390x - AppStream

xorg-x11-server-Xwayland-0:24.1.5-6.el10_1.src.rpm xorg-x11-server-Xwayland-debuginfo-0:24.1.5-6.el10_1.s390x.rpm xorg-x11-server-Xwayland-0:24.1.5-6.el10_1.s390x.rpm xorg-x11-server-Xwayland-debugsource-0:24.1.5-6.el10_1.s390x.rpm

Rocky Linux 10 ppc64le - CRB

xorg-x11-server-Xwayland-devel-0:24.1.5-6.el10_1.ppc64le.rpm

Rocky Linux 10 aarch64 - CRB

xorg-x11-server-Xwayland-devel-0:24.1.5-6.el10_1.aarch64.rpm

Rocky Linux 10 x86_64 - CRB

xorg-x11-server-Xwayland-devel-0:24.1.5-6.el10_1.x86_64.rpm

Rocky Linux 10 s390x - CRB

xorg-x11-server-Xwayland-devel-0:24.1.5-6.el10_1.s390x.rpm