{"id":"UBUNTU-CVE-2026-15028","details":"A flaw was found in libarchive. This vulnerability allows a remote attacker to trigger a heap overflow by providing a specially crafted tar archive. The issue occurs during the parsing of a PAX extended header containing a malformed SUN.holesdata sparse-file attribute. Successful exploitation could lead to a denial of service, making the system unavailable, or potentially allow for arbitrary code execution, giving the attacker control over the affected system.","modified":"2026-07-23T01:15:17.569238713Z","published":"2026-07-10T10:16:00Z","related":["USN-8581-1"],"upstream":["CVE-2026-15028"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-15028"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-15028"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-15028"},{"type":"REPORT","url":"https://github.com/libarchive/libarchive/pull/3253"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8581-1"}],"affected":[{"package":{"name":"libarchive","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libarchive?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.8.5-1ubuntu2.2"}]}],"versions":["3.7.7-0ubuntu3","3.8.5-1ubuntu1","3.8.5-1ubuntu2","3.8.5-1ubuntu2.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libarchive-tools","binary_version":"3.8.5-1ubuntu2.2"},{"binary_name":"libarchive13t64","binary_version":"3.8.5-1ubuntu2.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-15028.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L"},{"type":"Ubuntu","score":"medium"}]}