Gpgtar may follow the symlink to outside, when `-C` (`--directory`) option is used. This could be considered a security issue under recommended practice these days.
Major use cases (of no `-C`), it's gpgtar which creates the directory, so, this case has no problem.
For references, see other CVEs.
- GNU Tar: CVE-2025-45582
- node-tar: CVE-2026-23745