{"id":"ALSA-2026:61581","summary":"Moderate: tar security, bug fix, and enhancement update","details":"The GNU tar program can save multiple files in an archive and restore files from an archive.  \n\nSecurity Fix(es):  \n\n  * tar: tar: Hidden file injection via crafted archives (CVE-2026-5704)\n  * tar: tar: TOCTOU in incremental dumpdir 'X' rename handling allows restore path escape (CVE-2026-18477)\n  * tar: tar: --one-top-level hardlink targets not confined to top-level directory enabling arbitrary file overwrite (CVE-2026-18508)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * tar: --one-top-level with absolute path fails [almalinux-9] (JIRA:AlmaLinux-144021)\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":"2026-09-01T12:55:51.132550992Z","published":"2026-08-31T00:00:00Z","related":["CVE-2026-18477","CVE-2026-18508","CVE-2026-5704"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:61581"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-18477"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-18508"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-5704"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2455360"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2509735"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2509843"},{"type":"ADVISORY","url":"https://errata.almalinux.org/9/ALSA-2026-61581.html"}],"affected":[{"package":{"name":"tar","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/tar"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.34-13.el9_8"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2026:61581.json"}}],"schema_version":"1.9.0"}