{"id":"RLSA-2026:66403","summary":"Moderate: coreutils security update","details":"The coreutils packages contain the GNU Core Utilities and represent a combination of the previously used GNU fileutils, sh-utils, and textutils packages.\n\nSecurity Fix(es):\n\n* coreutils: GNU coreutils unexpand: Denial of Service via crafted tab stop values (CVE-2026-56392)\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":"2026-09-11T12:30:02.633038290Z","published":"2026-09-11T12:05:57.115373Z","upstream":["CVE-2026-56392"],"database_specific":{"license_url":"https://creativecommons.org/licenses/by/4.0/","source_advisory":"RHSA-2026:66403","license":"CC-BY-4.0"},"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:66403"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2506694"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:66403"}],"affected":[{"package":{"name":"coreutils","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/coreutils?distro=rocky-linux-9&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:8.32-41.el9_8.1"}],"database_specific":{"yum_repository":"BaseOS"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:66403.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}