CVE-2026-73030CWE-22path-traversal

CVE-2026-73030

High · published August 11, 2026

CVSS v3.1
8.1
EPSS
1%
Percentile
47.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00594 · 47.7th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-08-11T01:17Z
References (4)
https://github.com/frostming/unearth/commit/6c78164e7bfa28b8b3d6f247b87e560692e3c8ba · [email protected]https://github.com/frostming/unearth/issues/180 · [email protected]https://github.com/frostming/unearth/pull/181 · [email protected]https://www.vulncheck.com/advisories/unearth-path-traversal-via-unnormalized-paths-and-symlink-escape · [email protected]
EPSS history
Timeline
  • 10 AUG 20:09Z
    unearth 0.18.2 Path Traversal via Unnormalized Paths and Symlink Escape
    cvelistv5