{"id":"CVE-2026-73030","aliases":["DEBIAN-CVE-2026-73030","EUVD-2026-55802","GHSA-2fcv-9f95-p67v","UBUNTU-CVE-2026-73030","openSUSE-SU-2026:11541-1","openSUSE-SU-2026:21606-1"],"status":"published","title":"unearth 0.18.2 Path Traversal via Unnormalized Paths and Symlink Escape","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.","severity":{"version":"4.0","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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00594,"percentile":0.48671,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-22"],"published":"2026-08-10T20:09:44Z","modified":"2026-11-09T02:47:16Z","fixes":[{"ecosystem":"Debian:14","package":"unearth","fixed_in":["0.18.3-1"],"sources":["osv"]},{"ecosystem":"openSUSE:Leap 16.0","package":"python-unearth","fixed_in":["0.17.3-bp160.2.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"unearth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.0+ds1-1","0.11.0+ds-1","0.12.1+ds-1","0.14.0+ds-1","0.15.0+ds-1","0.15.1+ds-1","0.15.2+ds-1","0.15.3+ds-1","0.15.4+ds-1","0.15.5+ds-1","0.16.0+ds-1","0.16.1-1","0.17.1-1","0.17.2-1","0.17.3-1","0.17.5-1","0.18.1-1","0.18.2-1","0.18.3-1","0.18.3-2","0.7.2+ds-2","0.8.1+ds-1~exp1","0.9.1+ds-1","0.9.2+ds1-1"]},{"source":"osv","ecosystem":"Debian:13","package":"unearth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.17.5-1","0.18.1-1","0.18.2-1","0.18.3-1","0.18.3-2"]},{"source":"osv","ecosystem":"Debian:14","package":"unearth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.18.3-1"}]}],"versions":["0.17.5-1","0.18.1-1","0.18.2-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"unearth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.2+ds1-1","0.11.0+ds-1","0.12.1+ds-1","0.14.0+ds-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"unearth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.17.5-1","0.18.1-1","0.18.2-1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"python-unearth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.18.3-1.1"}]}],"bundled":2},{"source":"osv","ecosystem":"openSUSE:Leap 16.0","package":"python-unearth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.17.3-bp160.2.1"}]}]}],"products":[{"vendor":"frostming","product":"unearth"}],"references":[{"url":"https://github.com/frostming/unearth/issues/180","tags":["technical-description","exploit","issue-tracking","report"]},{"url":"https://github.com/frostming/unearth/pull/181","tags":["issue-tracking","patch","fix","report"]},{"url":"https://github.com/frostming/unearth/commit/6c78164e7bfa28b8b3d6f247b87e560692e3c8ba","tags":["patch","fix"]},{"url":"https://www.vulncheck.com/advisories/unearth-path-traversal-via-unnormalized-paths-and-symlink-escape","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73030","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2fcv-9f95-p67v"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73030.json","tags":["advisory"]},{"url":"https://github.com/frostming/unearth","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-73030","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-73030","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-73030","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2023-45805","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-73030","tags":["web"]},{"url":"https://bugzilla.suse.com/1275440","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-73030","title":"unearth 0.18.2 Path Traversal via Unnormalized Paths and Symlink Escape","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.","status":"published","published":"2026-08-10T20:09:44.641Z","modified":"2026-11-08T14:08:42.209Z","cvss":[{"version":"4.0","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","level":"high","assessor":"cna"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-08T15:43:34.234229Z"}],"euvd":[{"id":"EUVD-2026-55802","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.","status":"published","published":"2026-08-10T20:09:44Z","modified":"2026-11-08T14:08:42Z","cvss":[{"version":"4.0","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","level":"high"}],"updated_at":"2026-11-08T15:13:06.469155Z"}],"ghsa":[{"id":"GHSA-2fcv-9f95-p67v","title":"unearth through 0.18.2, fixed in commit 6c78164, contains a path traversal vulnerability in the...","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.","status":"published","published":"2026-08-10T21:32:09Z","modified":"2026-08-10T21:32:15Z","cvss":[{"version":"4.0","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/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","level":"high"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:10:16.495213Z"}],"nvd":[{"id":"CVE-2026-73030","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.","status":"published","published":"2026-08-10T21:17:26.45Z","modified":"2026-10-24T15:10:00.19Z","cvss":[{"version":"4.0","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/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","level":"high","assessor":"secondary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:12:36.102748Z"}],"osv":[{"id":"CVE-2026-73030","title":"unearth 0.18.2 Path Traversal via Unnormalized Paths and Symlink Escape","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.","status":"published","published":"2026-08-10T20:09:44.641Z","modified":"2026-11-09T02:47:16.347459488Z","cvss":[{"version":"4.0","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","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-09T03:16:17.543303Z"},{"id":"DEBIAN-CVE-2026-73030","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.","status":"published","published":"2026-08-10T21:17:26.45Z","modified":"2026-10-25T09:47:40.756841554Z","cvss":[{"version":"4.0","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/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","level":"high"}],"updated_at":"2026-11-02T15:46:02.499355Z"},{"id":"UBUNTU-CVE-2026-73030","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.","status":"published","published":"2026-08-10T21:17:00Z","modified":"2026-10-01T00:22:01.64673854Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","level":"high"},{"version":"4.0","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","level":"high"}],"updated_at":"2026-11-02T16:57:08.628462Z"},{"id":"openSUSE-SU-2026:11541-1","title":"python313-unearth-0.18.3-1.1 on GA media","description":"These are all security issues fixed in the python313-unearth-0.18.3-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-08-18T00:00:00Z","modified":"2026-08-19T18:23:34.463955889Z","updated_at":"2026-11-02T16:58:39.516824Z"},{"id":"openSUSE-SU-2026:21606-1","title":"Security update for python-unearth","description":"This update for python-unearth fixes the following issues:\n\nChanges in python-unearth:\n\n- CVE-2026-73030: `is_within_directory` function fails to normalize paths\n  before validation and allows `../` sequences to bypass directory containment\n  checks (bsc#1275440)\n","status":"published","published":"2026-08-18T17:35:01Z","modified":"2026-08-21T09:15:07.857422277Z","updated_at":"2026-11-02T16:58:41.885092Z"}]}}