CVE-2026-73030
unearth 0.18.2 Path Traversal via Unnormalized Paths and Symlink Escape
HIGH 7.2EPSS 0.6%
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
- frostming · unearth
- CVSS v4.0 VULNCHECK
- 7.2 HIGH
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v3.1 VULNCHECK
- 8.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H - EPSS
- 0.59% chance of exploitation in the next 30 days, 47th percentile
- Published
- 2026-08-10
- Updated
- 2026-08-11
Proof-of-concept exploits (1)
- frostming/unearth/issues/180160★ · 2026-10-13