{"id":"CVE-2026-116682","sourceIdentifier":"security-advisories@github.com","published":"2026-10-27T18:17:36.003","lastModified":"2026-10-27T18:17:36.003","vulnStatus":"Received","cveTags":[],"descriptions":[{"lang":"en","value":"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."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"gtsteffaniak","product":"filebrowser","versions":[{"version":"< 1.5.2-stable","status":"affected"},{"version":">= 2.0.0-beta, < 2.0.1-beta","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","baseScore":8.6,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":4.0}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Primary","description":[{"lang":"en","value":"CWE-22"},{"lang":"en","value":"CWE-59"}]}],"references":[{"url":"https://github.com/gtsteffaniak/filebrowser/commit/3c8c02414eefd3351ffe437fa39ff6eb150ffa67","source":"security-advisories@github.com"},{"url":"https://github.com/gtsteffaniak/filebrowser/commit/4126edeb07a015c3809a89249b283e07a4e50c38","source":"security-advisories@github.com"},{"url":"https://github.com/gtsteffaniak/filebrowser/pull/2795","source":"security-advisories@github.com"},{"url":"https://github.com/gtsteffaniak/filebrowser/pull/2800","source":"security-advisories@github.com"},{"url":"https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.5.2-stable","source":"security-advisories@github.com"},{"url":"https://github.com/gtsteffaniak/filebrowser/releases/tag/v2.0.1-beta","source":"security-advisories@github.com"},{"url":"https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-mgqf-5mf5-prfj","source":"security-advisories@github.com"}]}