{"id":"CVE-2026-116682","summary":"FileBrowser Quantum: Symlink following escapes user scope allowing arbitrary file read outside the served directory","details":"FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.5.2-stable and 2.0.1-beta, file read handling in backend/pkg/indexing/indexingFiles.go resolves symbolic links through GetRealPath without confirming that the resolved target remains inside the source root and the user's authorized scope. Download, preview, media, OnlyOffice, and public-share read flows that enable FollowSymlinks can therefore serve an out-of-scope target through a reachable in-scope symlink. An authenticated user with download access can read server-accessible files outside the assigned scope, and a holder of a public share link can do the same without an account when the shared directory exposes such a symlink. This issue is fixed in 1.5.2-stable and 2.0.1-beta.","aliases":["GHSA-mgqf-5mf5-prfj"],"modified":"2026-10-28T02:59:29.677309259Z","published":"2026-10-27T17:48:04.364Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116682.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-22","CWE-59"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116682.json"},{"type":"FIX","url":"https://github.com/gtsteffaniak/filebrowser/commit/3c8c02414eefd3351ffe437fa39ff6eb150ffa67"},{"type":"FIX","url":"https://github.com/gtsteffaniak/filebrowser/commit/4126edeb07a015c3809a89249b283e07a4e50c38"},{"type":"FIX","url":"https://github.com/gtsteffaniak/filebrowser/pull/2795"},{"type":"FIX","url":"https://github.com/gtsteffaniak/filebrowser/pull/2800"},{"type":"WEB","url":"https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.5.2-stable"},{"type":"WEB","url":"https://github.com/gtsteffaniak/filebrowser/releases/tag/v2.0.1-beta"},{"type":"ADVISORY","url":"https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-mgqf-5mf5-prfj"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116682"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/gtsteffaniak/filebrowser","events":[{"introduced":"0"},{"fixed":"45161017ccd3ffc1f2db589179cdaf0272bee027"},{"introduced":"0f71239e149dbe0528242b154872aa2ad410c7b4"},{"fixed":"0775a26d2d935e58737eb5be8265ecb0119304ae"},{"fixed":"3c8c02414eefd3351ffe437fa39ff6eb150ffa67"},{"fixed":"4126edeb07a015c3809a89249b283e07a4e50c38"}],"database_specific":{"extracted_events":[{"strategy":"StringRangeExpression","range":[{"introduced":"0"},{"fixed":"1.5.2-stable"}],"source":"AFFECTED_FIELD"},{"range":[{"introduced":"2.0.0-beta"},{"fixed":"2.0.1-beta"}],"source":"AFFECTED_FIELD","strategy":"StringRangeExpression"},{"range":[{"fixed":"3c8c02414eefd3351ffe437fa39ff6eb150ffa67"}],"source":"REFERENCES_COMMIT"},{"source":"REFERENCES_COMMIT","range":[{"fixed":"4126edeb07a015c3809a89249b283e07a4e50c38"}]},{"original_tag":"v1.5.2-stable","range":[{"fixed":"45161017ccd3ffc1f2db589179cdaf0272bee027"}],"source":"REFERENCES_TAG"},{"source":"REFERENCES_TAG","original_tag":"v2.0.1-beta","range":[{"fixed":"0775a26d2d935e58737eb5be8265ecb0119304ae"}]}]}}],"versions":["v1.5.5-beta","v1.5.1-stable","v1.2.1-stable","v1.0.1-stable","v0.7.6-beta","v0.5.2-beta","v0.5.1-beta","v0.5.0-beta","v0.4.2-beta","v0.4.1-beta","v0.4.0-beta","v0.3.7-beta","v0.3.6-beta","v0.3.4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-116682.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N"}]}