{"id":"CVE-2026-66064","aliases":["GHSA-964w-f6gj-5236","GO-2026-6134"],"url":"https://o3.security/vulnerability/CVE-2026-66064","summary":"goshs has ACL Bypass & Path Traversal","details":"goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.5, the httpserver/handler.go sendFile handler opened files using a cleaned path but derived the authorization filename from raw req.URL.Path, so a trailing slash could bypass .goshs ACL-file protection and block-list checks. This issue is fixed in version 2.1.5.","published":"2026-07-28T22:12:04.830Z","modified":"2026-09-09T18:26:43.270958819Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"epss":{"score":0.00308,"percentile":0.23406,"asOf":"2026-09-11"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/patrickhener/goshs/v2","fixedVersion":"2.1.5-0.20260727065949-f3ef599e4091"},{"ecosystem":"Go","name":"goshs.de/goshs/v2","fixedVersion":"2.1.5-0.20260727065949-f3ef599e4091"},{"ecosystem":"Go","name":"github.com/patrickhener/goshs","fixedVersion":null},{"ecosystem":"Go","name":"goshs.de/goshs","fixedVersion":null}],"fix":{"url":"https://github.com/goshs-labs/goshs/commit/f3ef599e409151d1380866e47de8b1afb0bb54fa","label":"goshs-labs/goshs@f3ef599"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66064.json"},{"type":"ADVISORY","url":"https://github.com/goshs-labs/goshs/security/advisories/GHSA-964w-f6gj-5236"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66064"},{"type":"FIX","url":"https://github.com/goshs-labs/goshs/commit/f3ef599e409151d1380866e47de8b1afb0bb54fa"},{"type":"FIX","url":"https://github.com/goshs-labs/goshs/pull/222"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-09T18:26:43.270958819Z"}}