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.

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History

Tue, 11 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 10 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
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.
Title unearth 0.18.2 Path Traversal via Unnormalized Paths and Symlink Escape
First Time appeared Frostming
Frostming unearth
Weaknesses CWE-22
CPEs cpe:2.3:a:frostming:unearth:0.10.0:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.11.0:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.11.1:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.11.2:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.12.0:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.12.1:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.5.2:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.6.0:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.6.1:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.6.2:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.6.3:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.7.0:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.7.1:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.7.2:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.8.0:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.8.1:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.9.0:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.9.1:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.9.2:*:*:*:*:python:*:*
cpe:2.3:a:frostming:unearth:0.9.3:*:*:*:*:python:*:*
Vendors & Products Frostming
Frostming unearth
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H'}

cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-11T17:16:13.975Z

Reserved: 2026-08-10T18:48:59.022Z

Link: CVE-2026-73030

cve-icon Vulnrichment

Updated: 2026-08-11T17:16:08.618Z

cve-icon NVD

Status : Received

Published: 2026-08-10T21:17:26.450

Modified: 2026-08-11T18:18:25.960

Link: CVE-2026-73030

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-11T03:15:05Z

Weaknesses