{"id":"CVE-2026-61844","summary":"FileRise: Folder Metadata Filename Collisions Bypass \"read_own\" Isolation","details":"FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.18.0, FileRise flattens logical folder paths into metadata filenames by replacing separators and spaces with hyphens, so distinct folders such as team/docs and team-docs can share one metadata file. Because uploader metadata is used to authorize read_own and ownership-restricted edits, a low-privileged user who controls one colliding folder, knows the target basename, and already has read_own access to the target folder can alter the metadata used by that folder, make the victim file appear attacker-owned, read it, and modify it when edit-own permission is also available. This issue is fixed in version 3.18.0.","aliases":["GHSA-qpm8-pgmq-wxmh"],"modified":"2026-10-15T10:47:29.516554422Z","published":"2026-10-14T20:23:53.321Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-706"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61844.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61844.json"},{"type":"FIX","url":"https://github.com/error311/FileRise/commit/9ed1a38f00918849dbda30f54291d1451ed80d11"},{"type":"WEB","url":"https://github.com/error311/FileRise/releases/tag/v3.18.0"},{"type":"ADVISORY","url":"https://github.com/error311/FileRise/security/advisories/GHSA-qpm8-pgmq-wxmh"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61844"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/error311/filerise","events":[{"introduced":"0"},{"fixed":"9de64e9f8b4b7e379ed41ed2854b9d8e609e15ff"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"3.18.0"}]}}],"versions":["v3.17.0","v3.16.0","v3.15.0","v3.14.0","v3.13.0","v3.12.0","v3.11.2","v3.11.1","v3.11.0","v3.10.0","v3.9.4","v3.9.3","v3.9.2","v3.9.1","v3.9.0","v3.8.0","v3.7.0","v3.6.1","v3.6.0","v3.5.2","v3.5.1","v3.5.0","v3.4.1","v3.4.0","v3.3.3","v3.3.2","v3.3.1","v3.3.0","v3.2.4","v3.2.3","v3.2.2","v3.2.1","v3.1.7","v3.1.6","v3.1.4","v3.1.3","v3.1.2","v3.1.1","v3.1.0","v3.0.2","v3.0.1","v3.0.0","v2.13.1","v2.13.0","v2.12.1","v2.12.0","v2.11.4","v2.11.3","v2.11.2","v2.11.1","v2.11.0","v2.10.5","v2.10.4","v2.10.1","v2.9.3","v2.9.2","v2.8.0","v2.7.1","v2.7.0","v2.6.2","v2.6.1","v2.5.2","v2.5.1","v2.5.0","v2.4.0","v2.3.7","v2.3.6","v2.3.5","v2.3.4","v2.3.2","v2.3.1","v2.3.0","v2.2.4","v2.2.3","v2.2.2","v2.2.1","v2.1.0","v2.0.4","v2.0.3","v2.0.2","v2.0.1","v1.9.14","v1.9.13","v1.9.12","v1.9.11","v1.9.10","v1.9.9","v1.9.8","v1.9.7","v1.9.6","v1.9.5","v1.9.4","v1.9.3","v1.9.2","v1.9.1","v1.9.0","v1.8.13","v1.8.12","v1.8.11","v1.8.10","v1.8.9","v1.8.8","v1.8.7","v1.8.6","v1.8.5","v1.8.4","v1.8.3","v1.8.2","v1.8.1","v1.8.0","v1.7.5","v1.7.4","v1.7.3","v1.7.2","v1.6.11","v1.6.10","v1.6.9","v1.6.8","v1.6.7","v1.6.6","v1.6.5","v1.6.3","v1.6.2","v1.6.1","v1.6.0","v1.5.3","v1.5.2","v1.5.1","v1.5.0","1.4.0","v1.3.15","v1.3.13","v1.3.9","v1.3.8","v1.3.7","v1.3.6","v1.3.5","v1.3.4","v1.3.3","v1.3.2","v1.3.1","v1.3.0","v1.2.8","v1.2.7","v1.2.6","v1.2.5","v1.2.4","v1.2.3","v1.2.2","v1.2.1","v1.2.0","v1.1.3","v1.1.2","v1.1.1","v1.1.0","v1.0.9","v1.0.8","v1.0.7","v1.0.6","v1.0.5","v1.0.4","v1.0.3","v1.0.2","v1.0.1","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61844.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L"}]}