{"affected":[{"defaultStatus":"affected","ecosystem":"github","packageName":"frostming/unearth","product":"unearth","source":"CNA: VulnCheck","vendor":"frostming","versions":[{"lessThanOrEqual":"0.18.2","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"6c78164e7bfa28b8b3d6f247b87e560692e3c8ba","versionType":"git"}]}],"cveId":"CVE-2026-73030","cwes":["CWE-22"],"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.","epss":{"date":"2026-11-08","percentile":0.48654,"score":0.00594},"exploits":[{"kind":"exploit","source":"CNA: VulnCheck","url":"https://github.com/frostming/unearth/issues/180"}],"kev":null,"metrics":[{"score":7.2,"severity":"high","source":"CNA: VulnCheck","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","version":"4.0"},{"score":8.1,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","version":"3.1"}],"modifiedAt":1794146922209,"publishedAt":1786392584641,"references":[{"source":"CNA: VulnCheck","tags":["technical-description","exploit","issue-tracking"],"url":"https://github.com/frostming/unearth/issues/180"},{"source":"CNA: VulnCheck","tags":["issue-tracking","patch"],"url":"https://github.com/frostming/unearth/pull/181"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/frostming/unearth/commit/6c78164e7bfa28b8b3d6f247b87e560692e3c8ba"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/unearth-path-traversal-via-unnormalized-paths-and-symlink-escape"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/frostming/unearth/pull/181"},{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/frostming/unearth/commit/6c78164e7bfa28b8b3d6f247b87e560692e3c8ba"}],"revision":"f3b8167fe02a730615fdf7a02fa4d377139c341b2f8057744dbeacbb964a5afa","sources":[{"modifiedAt":1794146922209,"name":"CNA: VulnCheck","retrievedAt":1794151338516,"url":"https://www.cve.org/CVERecord?id=CVE-2026-73030"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794151370148,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-73030"}],"ssvc":{"assessedAt":1786468561368,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"unearth 0.18.2 Path Traversal via Unnormalized Paths and Symlink Escape","updatedAt":1794151370148}