{"id":"RLSA-2026:82015","summary":"Important: xorg-x11-server security update","details":"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.\n\nSecurity Fix(es):\n\n* xorg-x11-server: xorg-x11-server: Privilege escalation via crafted RandR provider property requests (CVE-2026-93521)\n\n* xorg-x11-server: xwayland: xorg-x11-server: Arbitrary code execution via double-free in XKB geometry handling (CVE-2026-88812)\n\n* xorg-x11-server: xorg-x11-server: Out-of-bounds write via unvalidated modifier in ProcXIPassiveUngrabDevice (CVE-2026-93523)\n\nFor 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.","modified":"2026-10-14T07:00:02.775656059Z","published":"2026-10-14T06:30:05.473043Z","upstream":["CVE-2026-88812","CVE-2026-93521","CVE-2026-93523"],"database_specific":{"license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","source_advisory":"RHSA-2026:82015"},"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:82015"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2545164"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2545174"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2545177"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:82015"}],"affected":[{"package":{"name":"xorg-x11-server","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/xorg-x11-server?distro=rocky-linux-9&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.20.11-34.el9_8.4"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:82015.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}