[ALSA-2026:11388] Important: xorg-x11-server security update
Type:
security
Severity:
important
Release date:
2026-04-29
Description:
X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon. 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.
References:
Updated packages listed below:
Architecture Package Checksum
aarch64 xorg-x11-server-Xephyr-1.20.11-33.el9_7.aarch64.rpm 24fc0339737cf46bb92070072a0f45de10adc8b7fa9c70fbb9553b7dd93381b4
aarch64 xorg-x11-server-Xnest-1.20.11-33.el9_7.aarch64.rpm 48da728b42ab73eab5f68c233984240a43a69bf6608cf6eaf0773db791165ee7
aarch64 xorg-x11-server-devel-1.20.11-33.el9_7.aarch64.rpm 58c45684f812b9080e5653635a53500342afe25230f662647aea100f75797ce2
aarch64 xorg-x11-server-Xvfb-1.20.11-33.el9_7.aarch64.rpm 5ca775e84b9f6fbc4f1cba881da58f4b204481846689cc4f7f3bc021e0833fcb
aarch64 xorg-x11-server-Xdmx-1.20.11-33.el9_7.aarch64.rpm 885046a3a702b4649257e802835081b1e0793a72233d0f133e1542dfd63e71ab
aarch64 xorg-x11-server-common-1.20.11-33.el9_7.aarch64.rpm db5f1abddc700177ce13e5ce4de99c690067b4e6fd3bd7674a7d14c109285b29
aarch64 xorg-x11-server-Xorg-1.20.11-33.el9_7.aarch64.rpm e79de32056143954062e9232458eee8eb513a1aded3621fc79237956bc3f8b9f
i686 xorg-x11-server-devel-1.20.11-33.el9_7.i686.rpm 5353b779371d476035c91d56fa68ca851a729e8d8536607e6e3623db34fe1b7d
noarch xorg-x11-server-source-1.20.11-33.el9_7.noarch.rpm 7977bc9d7b343335f336cba8f279e8bdf48d3f7f820fe02724c0c96b17777138
ppc64le xorg-x11-server-devel-1.20.11-33.el9_7.ppc64le.rpm 0995e204f95da9eb4a04bc285b831d6a1b3a8f64969c76d34dab37ef6a01b3d6
ppc64le xorg-x11-server-Xephyr-1.20.11-33.el9_7.ppc64le.rpm 0a332c84daf35a9e2f82e7491454fc38077b55270b8839a215546250f61fe7ee
ppc64le xorg-x11-server-Xnest-1.20.11-33.el9_7.ppc64le.rpm 2eaf5a88beb45a7a5d8a86e35e8c221a3269d4a04fa3852dfceed619dd44710a
ppc64le xorg-x11-server-Xorg-1.20.11-33.el9_7.ppc64le.rpm 490e371408276719e3a0879d11f7a9e4de3a5964684376bb3af3cd32e0070660
ppc64le xorg-x11-server-common-1.20.11-33.el9_7.ppc64le.rpm 6ac252d46260911b0979903af613d6f6f7f85876fb6dbc53e886f1c05a7d40b5
ppc64le xorg-x11-server-Xdmx-1.20.11-33.el9_7.ppc64le.rpm 6b9a8152a545889d2891d72b0b993ca644201c4c13d68e1a23f4601849cf5915
ppc64le xorg-x11-server-Xvfb-1.20.11-33.el9_7.ppc64le.rpm 755d0be22fb478825f3292e5bf6aa3b442b0c112b77bcf3c14467606d83124a7
s390x xorg-x11-server-Xephyr-1.20.11-33.el9_7.s390x.rpm 570c1b8b9d3c59b2f2d3748a7df4cf3d3625faacf1ae2aa4ac585c16dd5d45de
s390x xorg-x11-server-Xorg-1.20.11-33.el9_7.s390x.rpm 66f79f5ef9e6bf5c6f8985c9576eb8f783416d10dd0010cc7fa356d14a640a7c
s390x xorg-x11-server-common-1.20.11-33.el9_7.s390x.rpm 8596762e74b1c6395d3feb5b244ce6aee8462347093ea3043f723906099be11d
s390x xorg-x11-server-Xdmx-1.20.11-33.el9_7.s390x.rpm 999fec57d919270c56b8cbc4af121e57e967d51696ad0b4c3be3eee15faacacb
s390x xorg-x11-server-devel-1.20.11-33.el9_7.s390x.rpm b4bea9bb0ed9c043b17019665fc399cc3507f563aa3a21b62f85a60391e04e52
s390x xorg-x11-server-Xnest-1.20.11-33.el9_7.s390x.rpm e483a2af7e86fab8bea605ed0cd4636e725a3fc75a08de42f3cde6376e63a6f0
s390x xorg-x11-server-Xvfb-1.20.11-33.el9_7.s390x.rpm f1f7ff2b84786e4d7d23214221d45964f4b26533e6a1f6280d14f7587291668c
x86_64 xorg-x11-server-Xdmx-1.20.11-33.el9_7.x86_64.rpm 4f9583a21807cb2d2ae0a52a2544077367792c2160b3483630373c342cb426bb
x86_64 xorg-x11-server-Xvfb-1.20.11-33.el9_7.x86_64.rpm 58f0b97d83537c4d1f58fa504ecc693f3ab58333a28e3c748e0998972b470500
x86_64 xorg-x11-server-Xephyr-1.20.11-33.el9_7.x86_64.rpm 92d2950e7eb5b3f07a11244af188216409ac7d44160c5cfe53dd72ecfb63dc46
x86_64 xorg-x11-server-Xorg-1.20.11-33.el9_7.x86_64.rpm 992e55426bb04714795e01972157d2fa289e28b8510afde30197b120c8cb378a
x86_64 xorg-x11-server-devel-1.20.11-33.el9_7.x86_64.rpm bafcf7facb6891f9fe89ad8556521e83458087a2c4f240a79cf256f80ed85479
x86_64 xorg-x11-server-Xnest-1.20.11-33.el9_7.x86_64.rpm d0441b5523da48847a4b58588c7ea237583e1e40000ec093b1f9086a47f70736
x86_64 xorg-x11-server-common-1.20.11-33.el9_7.x86_64.rpm d5da19af398cc6b98f17fe2ce80cfe4cc710f3b7837a73ca561c9cfed47b885c
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.