I treat extraction bugs differently from ordinary defects because an archive can cross a trust boundary. Version 0.2 is still an alpha; please report a suspected vulnerability privately through GitHub's security-advisory feature and do not attach a malicious archive to a public issue.
LowPack never executes archive contents and does not restore symlinks. Still, treat an unfamiliar archive as untrusted: verify it fully, extract into a new privately owned directory that no attacker can modify concurrently, keep the safety limits, leave permission restoration disabled, and inspect the result. Security support currently covers the newest released alpha.