{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"tar","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":[],"id":"tcs_01M5NQWDHA2718QRVVKA7N6007","modified_at":"2026-09-23T09:00:13.311516092Z","published_at":"2026-08-03T17:16:33.897Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-18477","https://security-tracker.debian.org/tracker/CVE-2026-18477"],"severity":{"label":"medium","score":4.4},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-18477","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-18477"}],"summary":"A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restor"}