{"id":"RLSA-2026:42739","summary":"Important: acl security update","details":"Access Control Lists (ACLs) are used to define fine-grained discretionary access rights for files and directories. The acl packages contain the getfacl and setfacl utilities needed for manipulating access control lists.\n\nSecurity Fix(es):\n\n* acl: Symlink traversal privilege escalation via libacl functions (CVE-2026-54369)\n\n* acl: TOCTOU Symlink Traversal via getfacl/setfacl (CVE-2026-54370)\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":"2026-07-22T12:30:07.017528033Z","published":"2026-07-22T12:05:54.429340Z","upstream":["CVE-2026-54369","CVE-2026-54370"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:42739"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2490277"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2490279"}],"affected":[{"package":{"name":"acl","ecosystem":"Rocky Linux:10","purl":"pkg:rpm/rocky-linux/acl?distro=rocky-linux-10&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.4.0-1.el10_2"}],"database_specific":{"yum_repository":"BaseOS"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:42739.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:N"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}