{"id":"RLSA-2026:11369","summary":"Important: xorg-x11-server-Xwayland security update","details":"Xwayland is an X server for running X clients under Wayland.\n\nSecurity Fix(es):\n\n* xorg: xwayland: X.Org X server: Denial of Service via integer underflow in XKB compatibility map handling (CVE-2026-33999)\n\n* xorg: xwayland: X.Org X server: Use-after-free vulnerability leads to server crash and potential memory corruption (CVE-2026-34001)\n\n* xorg: xwayland: X.Org X server: Information exposure and denial of service via out-of-bounds memory access (CVE-2026-34003)\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":"2026-04-29T18:25:48.701944Z","published":"2026-04-29T18:03:33.664574Z","upstream":["CVE-2026-33999","CVE-2026-34001","CVE-2026-34003"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:11369"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2451106"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2451109"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2451113"}],"affected":[{"package":{"name":"xorg-x11-server-Xwayland","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/xorg-x11-server-Xwayland?distro=rocky-linux-9&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:23.2.7-6.el9_7"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:11369.json"}}],"schema_version":"1.7.5","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"}]}