CVE-2026-73030: Frostming Unearth

High severity, CVSS 8.1. EPSS: 0.6% chance of exploitation in the next 30 days.

unearth through 0.18.2, fixed in commit 6c78164, contains a path traversal vulnerability in the is_within_directory function that fails to normalize paths before validation, allowing ../ sequences to bypass directory containment checks. Attackers can supply malicious tar archives with symlink members or traversal sequences to write files to arbitrary filesystem locations accessible to the process.

Affected products

• Frostming Unearth: up to and including 0.18.2

Published 2026-08-10. Last modified 2026-09-24.