[ALSA-2026:85193] Important: xorg-x11-server-Xwayland security update
Type:
security
Severity:
important
Release date:
2026-10-20
Description:
Xwayland is an X server for running X clients under Wayland. 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: Privilege escalation via crafted RandR provider property requests (CVE-2026-93521) * xorg-x11-server: xwayland: xorg-x11-server: Arbitrary code execution via double-free in XKB geometry handling (CVE-2026-88812) * xorg-x11-server: xorg-x11-server: Out-of-bounds write via unvalidated modifier in ProcXIPassiveUngrabDevice (CVE-2026-93523) * xorg-x11-server: glamor: size tmp_bits buffer for source coordinate range in upload_boxes (CVE-2026-93522) * 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.
Updated packages listed below:
Architecture Package Checksum
aarch64 xorg-x11-server-Xwayland-devel-24.1.9-4.el9_8.4.aarch64.rpm 4e80593583632b3b9602649860ece0d1eb2b4770f443e658466d1f22ab893b12
aarch64 xorg-x11-server-Xwayland-24.1.9-4.el9_8.4.aarch64.rpm 54a63df02598e14ad3ba67bb013434d9177dc5a1da6ffdfe901d0f836eb3b20d
i686 xorg-x11-server-Xwayland-devel-24.1.9-4.el9_8.4.i686.rpm a77ffc11aade8562e1d8afd2ede3adac3aa8fa0a27fa9edd470e33cef058b284
i686 xorg-x11-server-Xwayland-24.1.9-4.el9_8.4.i686.rpm ea966b40b1e3854af480f20c69f7384c4f8c5a088e05daf278a27821fb98b039
ppc64le xorg-x11-server-Xwayland-devel-24.1.9-4.el9_8.4.ppc64le.rpm 3dba7daa064a0fe9482ffdc87129f84c63847c2505d7d71804ce9b0499e3a9c0
ppc64le xorg-x11-server-Xwayland-24.1.9-4.el9_8.4.ppc64le.rpm 6b9d74623a983b95e192378ae98fef56de128f796403bafa37b9d112312147e5
s390x xorg-x11-server-Xwayland-24.1.9-4.el9_8.4.s390x.rpm 948060a1eadd2d3bffef570251aa0f7c8ea2112775d2bfcc9a367ad0b0e2f2e2
s390x xorg-x11-server-Xwayland-devel-24.1.9-4.el9_8.4.s390x.rpm e3b9d9ccf15614a15d12b21b2ebbce5cf3fd2c565674759d4f9dcd0295183210
x86_64 xorg-x11-server-Xwayland-24.1.9-4.el9_8.4.x86_64.rpm 69cc7c81173d8f479eb496bf3b7d4f1962febcd3df284220b2f8526ad90990c5
x86_64 xorg-x11-server-Xwayland-devel-24.1.9-4.el9_8.4.x86_64.rpm 8ebfc3de9c45519577109153efaafa5d03b885dfb8d7bd2a97049834cc0acea8
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.