Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/frostming/unearth/commit/6c78164e7bfa28b8b3d6f247b87e560692e3
- https://github.com/frostming/unearth/issues/180
- https://github.com/frostming/unearth/pull/181
- https://www.vulncheck.com/advisories/unearth-path-traversal-via-unnormalized-pat
FAQ
What is CVE-2026-73030?
CVE-2026-73030 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 ...
How severe is CVE-2026-73030?
CVE-2026-73030 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-73030?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.