{"schema_version": "1.7.0", "id": "RLSA-2026:82015", "modified": "2026-10-14T06:37:54.802041Z", "published": "2026-10-14T06:30:05.473043Z", "upstream": ["CVE-2026-88812", "CVE-2026-93521", "CVE-2026-93523"], "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.", "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_8.4"}], "database_specific": {"yum_repository": "AppStream"}}]}], "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"}], "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-2026:82015"}}