{"id":"CVE-2026-55668","aliases":["GHSA-8wc8-hf36-mjh9","GO-2026-6020"],"url":"https://o3.security/vulnerability/CVE-2026-55668","summary":"File Browser: ScopedFs follows a dangling symlink on write, letting a scoped user create files outside their scope","details":"File Browser provides a web file managing interface. Prior to 2.63.16, ScopedFs validates the nearest existing ancestor of a dangling symlink as in scope and then follows the symlink during file creation, allowing an authenticated user with Create and Modify permissions to create attacker-controlled files outside the user's scope. This issue is fixed in version 2.63.16.","published":"2026-07-08T14:55:25.433Z","modified":"2026-08-12T03:51:09.811396134Z","cvss":{"score":6.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N"},"epss":{"score":0.00378,"percentile":0.30936,"asOf":"2026-09-06"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/filebrowser/filebrowser/v2","fixedVersion":"2.63.16"}],"fix":{"url":"https://github.com/filebrowser/filebrowser/commit/64511ce45e3be379e965f7f4fb0929a068d5bb81","label":"filebrowser/filebrowser@64511ce"},"references":[{"type":"WEB","url":"https://github.com/filebrowser/filebrowser/releases/tag/v2.63.16"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55668.json"},{"type":"ADVISORY","url":"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-8wc8-hf36-mjh9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55668"},{"type":"FIX","url":"https://github.com/filebrowser/filebrowser/commit/64511ce45e3be379e965f7f4fb0929a068d5bb81"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:09.811396134Z"}}