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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
frostming unearth affected
Version Status Constraints
0 affected ≤ 0.18.2
6c78164e7bfa28b8b3d6f247b87e560692e3c8ba unaffected —

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Project Subscriptions

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/frostming/unearth/commit/6c78164e7bfa28b8b3d6f247b87e560692e3c8ba cve-icon
https://github.com/frostming/unearth/issues/180 cve-icon
https://github.com/frostming/unearth/pull/181 cve-icon
https://www.vulncheck.com/advisories/unearth-path-traversal-via-unnormalized-paths-and-symlink-escape cve-icon
History

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: 2026-08-10T20:09:44.641Z

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

Link: CVE-2026-73030

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-10T21:45:03Z

Weaknesses