{"id":"ALSA-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  * acl: TOCTOU Symlink Traversal via getfacl/setfacl (CVE-2026-54370)\n\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.\n","modified":"2026-07-22T15:30:04.222365343Z","published":"2026-07-21T00:00:00Z","related":["CVE-2026-54369","CVE-2026-54370"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:42739"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-54369"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-54370"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2490277"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2490279"},{"type":"ADVISORY","url":"https://errata.almalinux.org/10/ALSA-2026-42739.html"}],"affected":[{"package":{"name":"acl","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/acl"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.0-1.el10_2"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:42739.json"}},{"package":{"name":"libacl","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/libacl"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.0-1.el10_2"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:42739.json"}},{"package":{"name":"libacl-devel","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/libacl-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.0-1.el10_2"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:42739.json"}}],"schema_version":"1.7.5"}