{"id":"CVE-2021-48011","published":"2026-10-12T21:17:05.903","lastModified":"2026-10-16T19:18:44.867","description":"Servor 1.0.0 through 4.0.2 contains a path traversal vulnerability that allows unauthenticated remote attackers to escape the served root by sending URL-encoded dot segments. Attackers can send %2e%2e/ sequences, which decodeURI() decodes before path.join() in serveStaticFile and serveDirectoryListing, to read arbitrary files and list directories outside the root.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwes":["CWE-22"],"vendors":[],"products":[],"references":[{"url":"https://github.com/lukejacksonn/servor","tags":[]},{"url":"https://github.com/lukejacksonn/servor/commit/ec7d824ea6903c0fb97a452045bbb8335198cbab","tags":[]},{"url":"https://github.com/lukejacksonn/servor/pull/70","tags":[]},{"url":"https://www.vulncheck.com/advisories/servor-1.0.0-through-4.0.2-unauthenticated-path-traversal-via-url-encoded-dot-segments","tags":[]}],"exploitRefs":[{"url":"https://github.com/lukejacksonn/servor","tags":[]},{"url":"https://github.com/lukejacksonn/servor/commit/ec7d824ea6903c0fb97a452045bbb8335198cbab","tags":[]},{"url":"https://github.com/lukejacksonn/servor/pull/70","tags":[]}],"hasPoc":true,"ai":null}