{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-54094: File Browser: Symlink following lets scoped users read, overwrite, and share files outside their filebrowser scope","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-54094","status":"final","version":"1","initial_release_date":"2026-06-25T17:37:14.979Z","current_release_date":"2026-06-25T18:42:35.721Z","revision_history":[{"date":"2026-06-25T17:37:14.979Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.14, it does not stop the HTTP file handlers from following symbolic links before they open, serve, write, share, or list a file. As a result, a scoped user — and in some cases an unauthenticated public-share recipient — can cross the intended scope boundary by following a symlink whose path is lexically inside their scope but whose target is outside it. This vulnerability is fixed in 2.63.14.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-54094 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-54094"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-54094"},{"category":"external","summary":"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-239w-m3h6-ch8v","url":"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-239w-m3h6-ch8v"}]},"product_tree":{"branches":[{"category":"vendor","name":"filebrowser","branches":[{"category":"product_name","name":"filebrowser","branches":[{"category":"product_version","name":"< 2.63.14","product":{"name":"filebrowser filebrowser < 2.63.14","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:filebrowser:filebrowser:\\<_2.63.14:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-54094","title":"File Browser: Symlink following lets scoped users read, overwrite, and share files outside their filebrowser scope","notes":[{"category":"description","text":"File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.14, it does not stop the HTTP file handlers from following symbolic links before they open, serve, write, share, or list a file. As a result, a scoped user — and in some cases an unauthenticated public-share recipient — can cross the intended scope boundary by following a symlink whose path is lexically inside their scope but whose target is outside it. This vulnerability is fixed in 2.63.14.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH"},"products":["CSAFPID-1"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1"]}]}]}