[ALSA-2026:84574] Important: xorg-x11-server security update
Type:
security
Severity:
important
Release date:
2026-10-20
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-x11-server: xorg-x11-server: Arbitrary code execution via use-after-free in passive grab handling (CVE-2026-93516) * xorg-x11-server: xorg-x11-server: arbitrary code execution via GLX RenderLarge heap-based buffer overflow (CVE-2026-93517) * xorg-x11-server: xorg-x11-server: arbitrary code execution via integer truncation during keyboard mapping resize (CVE-2026-93518) * xorg-x11-server: xorg-x11-server: Arbitrary code execution via buffer overflow in input_constrain_cursor() (CVE-2026-93519) * xorg-x11-server: xorg-x11-server: arbitrary code execution via out-of-bounds write in XKB keycode handling (CVE-2026-93520) 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-Xorg-1.20.11-34.el9_8.5.aarch64.rpm 0b03ad82a8dd58a273526041dde7270176ff319e0530a62ab50a9e78616d1254
aarch64 xorg-x11-server-devel-1.20.11-34.el9_8.5.aarch64.rpm 24e687711eeb24b7986c195f9ca3a68af53ee1f894800a8e3af6c1924d74314b
aarch64 xorg-x11-server-Xdmx-1.20.11-34.el9_8.5.aarch64.rpm 489f9f8fccdf1d20ae2dacdfa410761c9e09f4c1917bf4e680175604df02b88b
aarch64 xorg-x11-server-Xvfb-1.20.11-34.el9_8.5.aarch64.rpm 829ad4fa250318a74688f577d46c64158cb608ed3794cb163162294117aef812
aarch64 xorg-x11-server-Xnest-1.20.11-34.el9_8.5.aarch64.rpm 8f603b9cc00a66a7a030b3a7468d68323f6fa0f6e4bd631d5f971e5c262542f6
aarch64 xorg-x11-server-common-1.20.11-34.el9_8.5.aarch64.rpm c39b3a4e25a6ad854f8e9879d42de07885f98773b85c210c71d041f8f2fe8c7d
aarch64 xorg-x11-server-Xephyr-1.20.11-34.el9_8.5.aarch64.rpm f29dcaa129d064a8692d4cc839a234606f4658fa2ede6f58535ed9e476ad345e
i686 xorg-x11-server-devel-1.20.11-34.el9_8.5.i686.rpm 19807c6ff706b9701fd703ac996dea3fb2819f1736657c38b8f58473d5a854ca
noarch xorg-x11-server-source-1.20.11-34.el9_8.5.noarch.rpm 2773c8f10cf5cdb9a9e0fab413643f95230344eabc2607e96c6fba7b65410a67
ppc64le xorg-x11-server-Xvfb-1.20.11-34.el9_8.5.ppc64le.rpm 0320fd2d8bb87136d56a6e7828bcf95059226b1e530d1187984bc1fcc676ce0f
ppc64le xorg-x11-server-Xephyr-1.20.11-34.el9_8.5.ppc64le.rpm 180968de498618889c7857d74bb360ec090d80ca3e6e02d4efca009b0627a384
ppc64le xorg-x11-server-Xdmx-1.20.11-34.el9_8.5.ppc64le.rpm 3dcf87a65344b973ec56da0e3cba5ee6fe581f6c75ceedd6002d817a11b1cf50
ppc64le xorg-x11-server-Xnest-1.20.11-34.el9_8.5.ppc64le.rpm 7b08483a98deb913412e3c3700304a9f9b4701afdc1fe2692f95c0658132f30c
ppc64le xorg-x11-server-common-1.20.11-34.el9_8.5.ppc64le.rpm a1b309e2a7887f5ef7e715f69cc9425a16bc4b196cbe80cbae3c1a8a7777b042
ppc64le xorg-x11-server-devel-1.20.11-34.el9_8.5.ppc64le.rpm de5cd15e5b98e298b8890c7445d3c5d89dd8285a31f39181cfd49eb98638832f
ppc64le xorg-x11-server-Xorg-1.20.11-34.el9_8.5.ppc64le.rpm e57b422901616823fb215e0f6071720c872691c586b3669b79fd7fde5e0adcff
s390x xorg-x11-server-devel-1.20.11-34.el9_8.5.s390x.rpm 05b424f46f66937c456769201228137288a741bba63b9dc4dca5d7084bb725f0
s390x xorg-x11-server-Xdmx-1.20.11-34.el9_8.5.s390x.rpm 080a86543fa4022e7d9ceb24c25cadc647dbf106eb7c3dbd593bdc0a4c36b7d3
s390x xorg-x11-server-common-1.20.11-34.el9_8.5.s390x.rpm 099fc6cb42a74b8de9669c08c8da13fd7618a66b0f5ec61caa94aeee9bdf283c
s390x xorg-x11-server-Xvfb-1.20.11-34.el9_8.5.s390x.rpm 551cbdc60143d5febb42b1215c983b7663d615b5da62f22624f7daa01c76a4b4
s390x xorg-x11-server-Xephyr-1.20.11-34.el9_8.5.s390x.rpm 74ac15e7f5d09c47d694d914df759cd6be4bfb4a91533723c7e2b10d78a8317b
s390x xorg-x11-server-Xorg-1.20.11-34.el9_8.5.s390x.rpm a984c373e442b704919b74afd2bc1473ed1feb6fea5e92d732a051ca5f6ff81f
s390x xorg-x11-server-Xnest-1.20.11-34.el9_8.5.s390x.rpm c2289913b0591231c8d4fb7e57947600180ae94d6495ab3799dd9bfb406110ea
x86_64 xorg-x11-server-Xephyr-1.20.11-34.el9_8.5.x86_64.rpm 132ce03a58bc11c7ab55f354d0deac24422fcc58c2f91bb9c7a318e60da60541
x86_64 xorg-x11-server-Xorg-1.20.11-34.el9_8.5.x86_64.rpm 38177f9ebec26eb3026829f8c1e5a41227fb02e5e37860f2680a7b588d81241d
x86_64 xorg-x11-server-Xnest-1.20.11-34.el9_8.5.x86_64.rpm 637d68e74388495c96fd20949f1cd01df6e6219a7e678e700ebb8d1e59f6139a
x86_64 xorg-x11-server-devel-1.20.11-34.el9_8.5.x86_64.rpm 70d81e0b13c4d373eaabb5fd9a2553b919e937915aa9e35609e2dc72e724d7d7
x86_64 xorg-x11-server-Xvfb-1.20.11-34.el9_8.5.x86_64.rpm 7ecb58d546359645896ba565e5173887d9295f1f72a1a32dce572071e1c09930
x86_64 xorg-x11-server-common-1.20.11-34.el9_8.5.x86_64.rpm c29fcf719e12f1725dbdb3780a09b001aeb9638a436e9ea6b3fbb0442d1b5cbd
x86_64 xorg-x11-server-Xdmx-1.20.11-34.el9_8.5.x86_64.rpm e3d056228192063bbba14355ad005d9d9d469fb09f1a90615ad5f4e82052647e
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.