{"id":"DEBIAN-CVE-2026-42496","details":"Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory.  _make_special_file() passes the tar header's linkname to symlink() without validating it against absolute paths or .. segments. The secure-extract mode check that guards regular file extraction does not cover the symlink target.  A subsequent open through the extracted name reads or writes the attacker chosen path.","modified":"2026-10-05T10:00:06.604756219Z","published":"2026-05-26T02:16:40.130Z","upstream":["CVE-2026-42496"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-42496"}],"affected":[{"package":{"name":"perl","ecosystem":"Debian:12","purl":"pkg:deb/debian/perl?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.36.0-7+deb12u4"}]}],"versions":["5.36.0-7","5.36.0-7+deb12u1","5.36.0-7+deb12u2","5.36.0-7+deb12u3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42496.json"}},{"package":{"name":"perl","ecosystem":"Debian:13","purl":"pkg:deb/debian/perl?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.40.1-6+deb13u1"}]}],"versions":["5.40.1-6"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42496.json"}},{"package":{"name":"perl","ecosystem":"Debian:14","purl":"pkg:deb/debian/perl?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.42.3-1"}]}],"versions":["5.40.1-6","5.40.1-7","5.40.1-8","5.42.0-1","5.42.0-2","5.42.0-3","5.42.2-1","5.42.2-2","5.42.2-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42496.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"}]}