{"schema_version": "1.7.0", "id": "RLSA-2026:84574", "modified": "2026-10-20T12:14:57.192444Z", "published": "2026-10-20T12:05:07.452289Z", "upstream": ["CVE-2026-93516", "CVE-2026-93517", "CVE-2026-93518", "CVE-2026-93519", "CVE-2026-93520"], "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: Arbitrary code execution via use-after-free in passive grab handling (CVE-2026-93516)\n\n* xorg-x11-server: xorg-x11-server: arbitrary code execution via GLX RenderLarge heap-based buffer overflow (CVE-2026-93517)\n\n* xorg-x11-server: xorg-x11-server: arbitrary code execution via integer truncation during keyboard mapping resize (CVE-2026-93518)\n\n* xorg-x11-server: xorg-x11-server: Arbitrary code execution via buffer overflow in input_constrain_cursor() (CVE-2026-93519)\n\n* xorg-x11-server: xorg-x11-server: arbitrary code execution via out-of-bounds write in XKB keycode handling (CVE-2026-93520)\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.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:9", "name": "xorg-x11-server", "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_8.5"}], "database_specific": {"yum_repository": "AppStream"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:84574"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2545161"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2545246"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2545860"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2545887"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2545908"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:84574"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}], "database_specific": {"license": "CC-BY-4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "source_advisory": "RHSA-2026:84574"}}