CVE-2026-126499 | BDVDB-2026-404830 Detail
jellyfinjellyfin
Description#
Jellyfin before 12.0 contains a path traversal vulnerability in the DELETE /Library/VirtualFolders and POST /Library/VirtualFolders/Name endpoints that allows attackers to delete or move directories via unvalidated library names. Unauthenticated attackers can supply names like .. or absolute paths before setup completes to recursively delete the data directory and jellyfin.db.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact high, availability impact high. Attack vector: network.
Weaknesses#
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References#
- https://github.com/jellyfin/jellyfin/security/advisories/GHSA-6828-c7cx-hvqm
- https://github.com/jellyfin/jellyfin/commit/0c560b22ce73323329645b836c9910abc257ce4e
- https://github.com/jellyfin/jellyfin/releases/tag/v12.0
- https://github.com/jellyfin/jellyfin/blob/v10.11.11/Jellyfin.Api/Controllers/LibraryStructureController.cs#L127-L176
- https://github.com/jellyfin/jellyfin/blob/v10.11.11/Emby.Server.Implementations/Library/LibraryManager.cs#L3255-L3275
- https://www.vulncheck.com/advisories/jellyfin-before-12.0-path-traversal-via-library-virtualfolders-endpoints
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.