[ALSA-2026:89747] Important: xorg-x11-server security update
Type:
security
Severity:
important
Release date:
2026-10-26
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: 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: 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-Xnest-1.20.11-28.el8_10.5.aarch64.rpm 18d93700cd5eeed483a264cadc2c2f769c1724bbc9d81728837bf675efedb9bd
aarch64 xorg-x11-server-Xvfb-1.20.11-28.el8_10.5.aarch64.rpm 41953b39038d307a8c99003b4f1520f55c255a419e508a3310b5ef3ff2222593
aarch64 xorg-x11-server-devel-1.20.11-28.el8_10.5.aarch64.rpm 442b9f216201f1f3219fcf53e8a38b996669ff00d0e59e96f5dccf04f5c73e45
aarch64 xorg-x11-server-Xephyr-1.20.11-28.el8_10.5.aarch64.rpm 7dd8a84ebd1e23c021d71bb36d8c2d512c560cfae209ef603e292f28d73250ab
aarch64 xorg-x11-server-common-1.20.11-28.el8_10.5.aarch64.rpm 8045a5d5e0425baf2649374b8fc06524591bba01f2766cd63512a360596759f7
aarch64 xorg-x11-server-Xdmx-1.20.11-28.el8_10.5.aarch64.rpm b5aa22218ce3f3556f1cc072119673aa0548aad0d5a726e6e4e73138d58ca096
aarch64 xorg-x11-server-Xorg-1.20.11-28.el8_10.5.aarch64.rpm ee26c4b54e86e5e7ce08fbccde49c0fb96357bdea30f7bc83606cc2069100584
i686 xorg-x11-server-devel-1.20.11-28.el8_10.5.i686.rpm 17a6560d9580fd28600f611bbaec22fd33854b7153177e4eca5f21bc67ea578c
noarch xorg-x11-server-source-1.20.11-28.el8_10.5.noarch.rpm ed76975807b2a3fce890fa834ade65718fa0aa9bb365bfdbb4adfd549b69f368
ppc64le xorg-x11-server-Xorg-1.20.11-28.el8_10.5.ppc64le.rpm 09092672776cd634900ad1d7b3ad0c8939cc88352756aab9e36769d05cf4f9b5
ppc64le xorg-x11-server-devel-1.20.11-28.el8_10.5.ppc64le.rpm 4d37e0f52d8b1059964a98a74db3c906c0e557ca806b45a50fa8a8a57761ade6
ppc64le xorg-x11-server-Xdmx-1.20.11-28.el8_10.5.ppc64le.rpm 8ba7a7796095ddd2b815a23baf49ccf6abe09bdd30de8afb7ced2aa4af9cd546
ppc64le xorg-x11-server-Xephyr-1.20.11-28.el8_10.5.ppc64le.rpm abe9b520df76fb717d8ad5d507e62eb6bd18036e69174ac80450ddb44aa90a2c
ppc64le xorg-x11-server-Xvfb-1.20.11-28.el8_10.5.ppc64le.rpm bca603d88372b69982cf171c5f2ff98354fa6d68997c102c9f0e150b64eeb61d
ppc64le xorg-x11-server-common-1.20.11-28.el8_10.5.ppc64le.rpm d24d81850ad3869c0ea8167f55dd91e85cc3a612b1994955ba200c7e1c7b341f
ppc64le xorg-x11-server-Xnest-1.20.11-28.el8_10.5.ppc64le.rpm d81b55b5518690226fa39c9cf38007a8571fa8cec3ceaf5b99b95e7974e735d5
s390x xorg-x11-server-Xorg-1.20.11-28.el8_10.5.s390x.rpm 1ae997066c52f0c93cefacfe5da6795d1d316798cf27a3e96a607ef1480c7637
s390x xorg-x11-server-common-1.20.11-28.el8_10.5.s390x.rpm 1b1aba4e7e24ec7085dd2f4bff054134d862ac59f20fb37da807c527f7986356
s390x xorg-x11-server-Xnest-1.20.11-28.el8_10.5.s390x.rpm 2d501e4fc56fe17506383de5784be07876cfb2814512a420a43dc1f8d87042a4
s390x xorg-x11-server-Xvfb-1.20.11-28.el8_10.5.s390x.rpm 8e0eb2d5537071c4755306831bfd4c34c20428f7f9c117b247df384b19d69e51
s390x xorg-x11-server-Xephyr-1.20.11-28.el8_10.5.s390x.rpm b6216755a7dac45caafad11cbcfa4e4de9bb8c9e6c00af804051a5138f48b16c
s390x xorg-x11-server-devel-1.20.11-28.el8_10.5.s390x.rpm df31b3da7b6b499041c974d9b69a44fd0bf2aa5ea4ddc1acf67e4f5387960df0
s390x xorg-x11-server-Xdmx-1.20.11-28.el8_10.5.s390x.rpm eb0eb3b171cf30edadfb1a754054642520b22db233693ed62a2e0a084da6425e
x86_64 xorg-x11-server-Xvfb-1.20.11-28.el8_10.5.x86_64.rpm 0d3a00019dc6cd046c6cd70a048ad9ce68280bbf6276c94b4e0e72e985aa9b89
x86_64 xorg-x11-server-Xorg-1.20.11-28.el8_10.5.x86_64.rpm 141be5b6cb92d90ab0529c89a0371974187e39ecdab007a9c6071d1a3b084b50
x86_64 xorg-x11-server-common-1.20.11-28.el8_10.5.x86_64.rpm 37151b8c8a4cbb10073747aa7f2dd8f487f0cec3f5ccf231bfd8953f3661a841
x86_64 xorg-x11-server-devel-1.20.11-28.el8_10.5.x86_64.rpm 64a939efd8d3e49c98cbfc5f6187c1e3d6495efa1c412c8f497795a2c90926ea
x86_64 xorg-x11-server-Xephyr-1.20.11-28.el8_10.5.x86_64.rpm 7cf5465e7ebb4b2e3db28e3f5bd021db8e34aa171a95871798375399f221498c
x86_64 xorg-x11-server-Xdmx-1.20.11-28.el8_10.5.x86_64.rpm 88ea76ef1f77f3b34ccfeba77273c1767734e3e502cd087bd35651482d9ab262
x86_64 xorg-x11-server-Xnest-1.20.11-28.el8_10.5.x86_64.rpm d85719d6e17c36bc022232236ec43ce273eeed32e02d0841963f551b59787be2
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.